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October 20, 2014

Search: How much heat in kcal must be added to 0.52 kg of water at room temperature (20°C) to raise its temperature to 37°C?

Number of results: 63,934

Chem
If 3.20 kcal of heat is added to 1.00 kg of ice at 0 degrees C, how much water at 0 degrees C is produced, and how much ice remains? Could someone post the answer n the equation?
May 18, 2010 by Anonymous

chemistry
To raise the temperature of 200.8 g of water from 50.00 C to 60.00 C requires how much heat?
February 28, 2013 by jo

PHYSICS
Q1= An 85 cu.meter room. - How much energy required to heat room temperature from 5C to 22C. - How long in minutes Q2= - a 40 Liter radiator in the same room above. energy input is 5400 watts. In order to increase room temperature from 5C to 22C, how long 5400 Watts will be ...
May 31, 2012 by M BIL

phys
A 0.600-kg aluminum teakettle contains 4.00 kg of water at 26.0 C. How much heat is required to raise the temperature of the water (and kettle) to 100.0 C?
April 25, 2012 by opp

Physic II
How much heat is needed to raise the temp. of 300g of lead (c=0.11 kcal/kg.degreeC)by 5 degC
April 7, 2014 by hulune

Physics
Consider a piece of metal that is at 5 deg C. If it is heated until it has twice the internal energy, its temperature will be. a)556 deg C b)283 deg C c)273 deg C d)278 deg C e)10 deg C
November 19, 2012 by S

Physics
A 100 kg steam boiler is made of steel and contains 200 kg of water at 5.00C. How much heat is required to raise the temperature of both the boiler and water to 100C? The specific heat of Steel is 0.115kcal/kgC. The specific heat of Water is 1.00kcal/kgC
April 2, 2012 by Madison

Physical Science
When 8 kcal of heat is added to 2.4 kg of a substance, its temperature increases 23 C. What is the specific heat of the substance?
March 17, 2014 by jasmine

Physics
A class of 11 students taking an exam has a power output per student of 122 W. Assume that the initial temperature of the room is 18.8oC and that its dimensions are 6.40 m by 14.5 m by 3.50 m. What is the temperature (in oC, do not enter units) of the room at the end of 54.0 ...
November 11, 2012 by jake

science
Assuming that radiation with a wavelength = 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 degree celcius, how many photons are necessary to raise the temperature of a 350 mL cup of ...
July 22, 2011 by Breanna

chem
Potassium nitrate has a lattice energy of -163.8 kcal/ mol and a heat of hydration of -155.5 kcal/ mol . How much potassium nitrate has to dissolve in water to absorb 105kj of heat? Answer in kg.
September 19, 2012 by michelle

Honors chemistry
You need to boil 307 g of water (specific heat = 4.184) so you can make a cup of your favorite drink. If room temperature is 20.15 oC, how much heat is needed to boil the water?
September 23, 2012 by Claire

chemistry
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 114 kj of heat?
February 15, 2009 by reese

chemistry help!
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 105 kJ of heat?
September 19, 2012 by student

Chemistry
Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...
June 10, 2009 by Dave

Chemistry
Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...
June 10, 2009 by Dave

Chemistry
Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...
June 11, 2009 by Dave

AP chemistry
A typical electric air conditioner rated at 1.00 * 10^4 Btu/h (1 Btu = amount of energy required to raise the temperature of 1 lb of water by 1F). How much water must be evaporated each hour to dissipate as much heat as a typical electric air conditioner?
November 30, 2008 by kuljit

chemistry
The heat lost or gained by a system is related to its temperature change by a property called its heat capacity. The molar heat capacity of metals at or above room temperature equals 24.92 J/K.mol. The temperature of a block of lead (MM 207.2) was raised by 13.1 degrees when ...
September 25, 2014 by korko

college chem
In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature. In one experiment, the mass of the metal block is 89.5 grams, the volume of ...
October 8, 2009 by Sarah

science
Which of the following would require more energy to heat it from 10C to 20C? a. 200 kg of water b. 200 kg of aluminum c. 100 kg of steel How much heat energy is required to raise the temperature of 20 kilograms of water from 0C to 35C?
February 7, 2013 by edwin

physics
the mass of the water is 131 kg and its initial temperature is 24.2C, how much energy must the water transfer to its surroundings in order to freeze completely? The specific heat of water is 4186 J/kgK, and the latent heat of fusion is 333 kJ/kg
August 5, 2014 by kb

Chemistry
The temperature of 100.0 mL of water was raised from 26.7 degrees C to 62.3 degrees C. How much heat in calories was added to the water? (The specific heat of water is 1.000 cal/g degrees C and the density of water at 26.7 degrees C is 0.996626 g/mL)
April 1, 2010 by Ally

Chemistry
Mercury, with a freezing point of -38.8C, is the only metal that is liquid at room temperature. How much heat energy (in joules) must be released by mercury if 1.30 mL of the metal is cooled from room temperature (18.0C) to -38.8C and then frozen to a solid? (The density of...
May 25, 2011 by Amalia

HEAT TRANSFER
The door of a domestic refrigerates has an area of 1.7 m2 & it basically consists of a thin metal sheet with a 25 mm thick layer of insulation on the inside. The thermal conductivity of this insulation is 0.25 W / m-deg & heat transfer on each side of the door is 10 W / m2-deg...
August 1, 2012 by SIDDIQUE

Chemistry
80.0 mL of water is initially at room temperature (22degrees C). A chilled steel rod at 2 degrees C is placed in the water. If the final temperature of the system is 21.2 degrees C, what is the mass of the steel bar? Specific heat of water = 4.18J/g(degreesC) Specific heat of ...
October 22, 2010 by Ellen

Chemistry
Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289J/g. What mass of ...
December 14, 2006 by Jenn

physics
The amount of heat Q needed to turn a mass m of room temperature T_1 water into steam at 100degrees C T_2 can be found using the specific heat c of water and the heat of vaporization H_v of water at 1 atmosphere of pressure. Suppose that a commercial espresso machine in a ...
November 27, 2008 by Anonymous

Chemistry
A quantity of ice at 0.0C was added to 25.6 g of water at 21.0C to give water at 0.0C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g C). I dont understand how to set this problem up (what the formula is and where to...
October 8, 2008 by Ryan

Chemistry
A quantity of ice at 0.0C was added to 25.6 g of water at 21.0C to give water at 0.0C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g C). I dont understand how to set this problem up (what the formula is and where to...
October 8, 2008 by Ryan

Physics
One liter of water at 47 degree C is used to make iced tea. How much ice at 0 degree C must be added to lower the temperature of the tea to 12 degree C? The specific heat of water is 1 cal/g degree C and latent heat of ice is 79.7 cal/g.
January 19, 2011 by rukia

College Chemistry
1. What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it? 2. A 30.5 g sample of an alloy at 94.0C is placed into 48.7 g water at 20.3C in an insulated coffee cup. The heat capacity ...
October 20, 2010 by Nevaeh

chemistry
calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50ml of water from room temperature 20C to 45C? Remember heat loss during the dissolution is equal to the heat capacity of water. this value is 4.184. you assume that the density of ...
October 17, 2010 by Tersa

Chemistry
Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50ml of water from room temperature 20C to 45C? Remember heat loss during the dissolution is equal to the heat capacity of water. this value is 4.184. you assume that the density of ...
October 19, 2010 by Sarah

physics
The same amount of heat entering identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.25 kcal of heat enters 1.25 kg of the following, originally at 20.0C. (a) water (b) concrete (c) steel (d) mercury
July 19, 2013 by Eric

Chemistry
Calculate the amount of heat (in calories) required to raise the temperature of 200g of water from 20C to 50C. The specific heat of water is 1.00 cal/g. I have done other spacific heat problems but on this one i don't know how to start...
November 10, 2009 by Christina

chemistry
Hii i was wondering if u cud help me solve this problem..im not sure how to start it. Calculate the delta H for the reaction of solid potassium with liquid water. If a 5.00 g piece of potassium is added to 1.00 kg of water at 24 degrees celsius what is the final temperature of...
November 5, 2009 by Anmol

Chemistry
Heat energy is added to a 325 g block of nickel, and the temperature increases from 23 degrees celsius to 51 degrees celsius. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be?
September 12, 2013 by Bre

Physics - calorie
This was my problem: 4.) The specific heat capacity of copper is 0.092 cal/g*oC. Show that the amount of heat needed to raise the temperature of a 10-g piece of copper from 0oC to 100oC is 92 cal. How does this compare with the heat needed to raise the temperature for the same...
September 20, 2009 by Mary

Chemistry
I am lost about where to start on this. "The idea comes to mind to put some hot rocks in your frozen bath water. What mass of rocks at 220 degrees Celsius needs to be added to 500.0L of frozen bath water at 0 degrees celsius to raise its temperature to 55 degrees celsius? The ...
February 17, 2012 by James

Active physics
How much hear must be added to 1.5kg of water at -25degC to raise it up to 119degC?
May 9, 2011 by Alicia

Physics
Assume the optimal coffee drinking temperature is 75C, and further assume coffee has the same heat capacity and density as water. a. How much energy is required to raise the temperature of 1 cup (0.237 liters) of coffee initially at 25C to the optimal temperature? b. How ...
December 5, 2010 by Steve

Physical Science
I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure it out. Please Help Me!! The Latent Heat of Vaporization for water is 540. cal/g. How much heat (in calories) must be added to 10.0 g of water at ...
February 5, 2013 by Jessica

Science
Why does the temperature remain constant around 0 degrees C and 100 degrees C? For what? For water when it is freezing or boiling? Or do you have another question in mind? Sorry, it's for water when it is freezing or boiling. Think of it this way. Start with a cup of water. ...
January 4, 2007 by Katie

Physic II
A technician needs to raise the temperature of a 2 kg block of steel from 25 oC to 700 oC in an annealing process. How much energy, in Joules, must be transferred to the steel to produce this temperature rise? Specific heat=448J/kg C
April 17, 2014 by huruney@

HEAT TRANSFER
Compute the heat flux thoroughly a 10 cm thick brick wall (k= 0.69 W/m-deg) Which has temperature of 105 C & 10 C maintained on its two faces. How this heat flux would vary when 3cm thick layers of magnesia insulation is added on the inside & outside faces of the wall? Also ...
August 1, 2012 by SIDDIQUE

physics
A 40-g block of ice is cooled to −71C and is then added to 590 g of water in an 80-g copper calorimeter at a temperature of 27C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. (If not all the ice melts, determine how much ...
April 6, 2012 by kevin

physics
A 40-g block of ice is cooled to −71C and is then added to 590 g of water in an 80-g copper calorimeter at a temperature of 27C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. (If not all the ice melts, determine how much ...
April 11, 2012 by anthony

chemistry
How much energy must be put into a system to raise 100 g of solid water from 5.5 degrees Celsius to 75 Degrees Celsius? Heat Capacity of Ice: 2.09 J/g degrees C Heat Capacity of Water: 4.18 J/g degrees C Heat of Fusion: 6.01 kJ/mol
June 17, 2011 by Britney

chemistry
Calculate the heat that must be supplied to a 488 g stainless steel vessel containing 441 g of water to raise its temperature from 38.7◦C to the boiling point of water 100◦C.
September 28, 2013 by kaleb

chemistry
The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, and the specific heat of water is 4.184 J/deg/g. How many grams of ice at 0 could be converted to steam at 100 C by 9,946 Joules of heat?
November 15, 2013 by Dakota

Physics
Aluminum is melted during the recycling process. (a) How much heat must be transferred to each kilogram of aluminum to bring it to its melting point, 660 degrees C, from room temperature, 20 degrees C? (b) About how many cups of coffee could you make with this much heat?
February 17, 2011 by Heat transfer

physics
134 g of water at 7C is added to ice at 0C. If the final temperature of the system (which you can assume is isolated) is 0C, determine HOW MUCH ICE MELTED. The specific heat of water is 4186 J/kgC. The latent heat of fusion for H2O is 335,000 J/kg.
November 14, 2012 by Joseph

Physics ptoblem
At body temperature the latent heat of vaporization of water is Lv = 2.26 103 kJ kg−1. (a) A naked person with a surface area A = 1.55 m2 and a skin temperature c = 37.3 XC is in a sauna room at T = 82.0 XC. The person's skin has an emissivity e = 0.910. She ...
May 2, 2010 by kelly

physics problem
At body temperature the latent heat of vaporization of water is Lv = 2.26e3 kJ/kg. (a) A naked person with a surface area A = 1.55 m2 and a skin temperature = 37.3 degrees is in a sauna room at T = 82.0 degrees. The person's skin has an emissivity e = 0.910. She evaporates ...
May 2, 2010 by kelly

Chemistry
106 g of iron at 84.0C are placed in contact with 205 g of silver at 11.0C. If no heat is lost to the surroundings, what is the final temperature of the metals? The specific heat of iron is 0.418 J/gC and that of silver is 0.251 J/gC. 92.0 g of a metal at 92.0C are ...
April 25, 2011 by Becky

Physics
the pressure is one atmosphere and determine the heat in joules required to produce 5.03 kg of water vapor at 100.0 C, starting with (a) 5.03 kg of water at 100.0 C and (b) 5.03 kg of liquid water at 0.0 C. for part (a) I used the equation Q=mL and L was a given value but I...
November 17, 2006 by Jena

science
"How many calories of heat are required to raise the temperature of 650 g of water from 13.0C to 20.0C? (Heat of water is 1.00cal/g X C) "
April 3, 2011 by sharon

Physics- LOST!
If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0 kg person's body produces ...
December 3, 2007 by Jamie

chemistry
Can specific heat be negative? I know energy can be (as in joules or calories) because when something cools down the temperature difference is a negative, and because the energy is an important part of the formula for specific heat, couldn't it be negative? Specific heat ...
October 22, 2006 by Fido

Physics
How much heat, expressed in Kwh, is required to raise the temperature of water in a 20,000 gallon pool by 10 degrees C. ?
April 26, 2013 by Wolter

chemistry
KCl(s) → K+(aq) + Cl‾ (aq) Solid KCl dissolves as shown in the above equation. A 6.60 g sample of KCl was dissolved in 42.3 g of water. The initial temperature of the water was 21.90C. After the compound dissolved, the temperature of the water was 10.20C. Assume ...
September 26, 2012 by sam

Physics
I have ten problems left on my homework that I need help with. My instructor gives us the answer and we have to write down the steps. So if anyone could help me I would really appreciate it. 1 A steel wire, 150 m long at 10C, has a coefficient of linear expansion of 11 10-6...
December 16, 2010 by Jesse

Urgent-Chemistry Help
I need help with the heat effects and calorimetry worksheet. Please explain how to solve it! Thank you so much! A metal sample weighing 45.2g and at a temperature of 100.0 C was placed in 38.6g of water in a calorimeter at 25.6 C. At equilibrium the temperature of the water ...
December 4, 2006 by Tiffany

Physics
How many grams of ice must be added to 100 grams of water at 60 degrees so that its temperature drops to 20 degrees celcius? As far as i know I have to use: (Mass)*(specific heat of water) *(finaltemperature - initial temperature = ??
January 7, 2010 by Jose

physics
A 920 g empty iron kettle is put on a stove. How much heat in joules must it absorb to raise its temperature form 15.0 C to 93.0 C? (The specific heat for iron is 113 cal/kg C.)(1 cal = 4.184 J)
January 22, 2013 by julie

physics
A 1.23-kg copper pot contains 2.17 L of water. Both pot and water are initially at 18.3C. How much heat must flow into the pot and the water to bring their temperature up to 93.1C? Assume that the effect of water evaporation during the heating process can be neglected and ...
August 8, 2014 by medy

Chemistry
LiI(s) → Li+(aq) + I‾ (aq) Solid LiI dissolves as shown in the above equation. A 8.00 g sample of LiI was dissolved in 57.5 g of water. The initial temperature of the water was 21.40C. After the compound dissolved, the temperature of the water was 37.13C. Assume ...
February 10, 2010 by Sug

Physics
60) A class of 10 students taking an exam has a power output per student of about 200W. Assume the initial temperature of the room is 20 C and that its dimensions are 6.0 m by 15.0 m by 3.0 m. What is the temperature of the room at the end of 1.0 h if all the energy remains in...
November 30, 2010 by Y0gi

physic
A 0.20 kg ice cube at 0.0 C has sufficient heat added to it to cause total melting, and the resulting water is heated to70deg.Cel. > How much heat is added? (For water Lf=334kj/kg > andLv=2257kj/kg >
July 24, 2010 by kristin

Physicsl Science
A heat pump releases 103.0 kcal as it removes 54.0 kcal at the evaporator coils. how much work does this heat pump ideally accomplish? Answer should be in KJ
September 17, 2014 by Barbara

Physical Science
A heat pump releases 103.0 kcal as it removes 54.0 kcal at the evaporator coils. How much work does this heat pump ideally accomplish? The answer should be in KJ
September 18, 2014 by Barbara

chemistry
When 47.5J of heat are added to 13.2 g of liquid, its temperature rises by 1.72 degrees C. What is the heat capacity of the liquid? A cook wants to heat 1.35kg of water from 32.0 degrees C to 100 degrees C. If he uses combustion of natural gas to heat the water, hou much ...
September 21, 2012 by Alyssa

Chemistry
Assume a piece of hot metal is added to a calorimeter containing 50mL of water at 22C. The amount of heat released by the metal was determined to be 1000J, and the equilibrium temperature in the calorimeter was 26C. Remembering that the specific heat of water is 4.18 J/gC, how...
June 27, 2011 by Lance

Chemistry
Assume a piece of hot metal is added to a calorimeter containing 50mL of water at 22C. The amount of heat released by the metal was determined to be 1000J, and the equilibrium temperature in the calorimeter was 26C. Remembering that the specific heat of water is 4.18 J/gC, how...
June 27, 2011 by Lance

physics
A 250-g block of ice is removed from the refrigerator at 􏰀8.0C. How much heat does the ice absorb as it warms to room temperature (22C)? The heat of fusion of water is 3.34􏰁105 J/kg.
December 7, 2012 by yasir

Physice....help please
not understanding how to do this. A certain storm cloud has a potential of 1.00x10^8 V relative to the tree. If during a lightning storm, 50C of a charge is transfered through this potential differnce and 1.00% of the energy is absorbed by the tree, how much sap can be boiled ...
April 16, 2008 by ~christina~

physics
600g of water is mixed with 20g of steam at 100 deg Celcius. What is the final temperature if the original temperature of the water is 25 deg Celcius
February 23, 2008 by shan

Physics
How much heat must be transferred to each kilogram of aluminum to bring it to its melting point, 660C, from room temperature, 20C?
June 29, 2011 by Mike

Chemistry
A 500 mL bottle at room temperature (25˚C) of water is poured over 120 g of ice that is (-8˚C). What will be the final temperature of the water be when all the ice has melted? You can ignore loss of heat to the room.
November 3, 2012 by Paige

Physics
"Luke Skywalker mixes 250g of hot water (75 deg C) with 500g of cool water (15 deg C). What is the final temperature of the water?" If someone could just give me a formula, I'd be fine. :)
October 4, 2008 by Jen

chemistry
The amount of 2.00 mol of a solid ionic compound was dissolved in 225 mL of water in an insulated container. The initial temp of water was 20 deg. C and the final temp. was 47.8 deg C. What is the delta heat Dissolution? Assume the heat absorbed by the container is negligible.
March 27, 2011 by carla

college
how much enery is necessary to heat 1.0kg of water from room temperature to the boiling point?
October 28, 2010 by Dee

physics
A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
January 24, 2012 by ang

physics
A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
January 25, 2012 by ang

physics
A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
January 25, 2012 by ang

Chemistry
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C) q = mass x specific heat x delta T? q = mass x heat...
February 4, 2008 by Lauren

chemistry
1. a) 50ml of water at 46.9C were mixed with 50ml of water at 25.1C in a calorimeter also at 25.1C. The final temperature was 30.1C. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the ...
November 12, 2012 by Cicily

Chemistry
The specific heat of zinc is 0.096 cal/(g C). Determine the energy required to raise the temperature of 26.1 g of zinc from room temperature (20.0 C) to 150 C.
April 3, 2013 by B

Chem
The specific heat of zinc is 0.096 cal/(g C). Determine the energy required to raise the temperature of 26.1 g of zinc from room temperature (20.0 C) to 150 C.
April 4, 2013 by Joel

physics
1. Assume that 10 g of steam is added to 100 g of water initially at 19C. The water is inside an aluminum cup of mass 35 g. The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment. Find the final temperature of the ...
December 5, 2013 by bano

physics
Assume that 10 g of steam is added to 100 g of water initially at 19C. The water is inside an aluminum cup of mass 35 g. The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment. Find the final temperature of the ...
December 5, 2013 by bano

physical science
how much heat must be added to 1.0 kg of water at 100 degrees Celsius to convert it to steam at 100 degrees Celsius? i know that normally when the temperatures are the same, the heat added is zero, but i think that in this case i need to do something different.
June 28, 2011 by miley

Chemistry
When a vehicle is parked in the sunlight on a hot summer day, the temperature inside can approach 55 deg C. one company has patented a non-CFC propelled aerosol that can be sprayed inside a vehicle to reduce the temperature to 25 deg C within seconds. the spray contains a ...
November 20, 2010 by Rayana

Chemistry
When a vehicle is parked in the sunlight on a hot summer day, the temperature inside can approach 55 deg C. one company has patented a non-CFC propelled aerosol that can be sprayed inside a vehicle to reduce the temperature to 25 deg C within seconds. the spray contains a ...
November 21, 2010 by Rayana

Chemistry
the specific heat of water is 4.184 j/g c. How many grams of water at 85 C would have to be added to raise 1.00 kg of water from 25.0 C to 50.0 C? Please help I am not sure of where to start!
November 10, 2012 by Anonymous

Physics
To raise the temperature of a 2.0-kg piece of metal from 20C to 100C, 61.8 kJ of heat is added. What is the specific heat of this metal in kJ/(kg.K)? Question 1 options: A) 0.39 B) 0.31 C) 1.6 D) 1.2 E) 0.77
August 12, 2011 by Zuen-Lee

Physicss
a typical woman gives off heat at rate of about 8000 calories per hour. how long would a woman have to stay in a bath of 60L (60,000 g) of 26 C water in order to raise the water temperature to 30 c ? presume that all the heat given off by the woman is transferred to the water...
May 9, 2013 by mary

chem 101
How much heat is required to raise the temperature of exactly one liter of water fro m 60 F to 180 F? answer: 279 kj/mol
April 11, 2012 by Anonymous

chemistry
The molar heat of fusion for water is 6.01 kJ/mol. How much energy must be added to a 75.0-g block of ice at 0C to change it to 75.0 g of liquid water at 0C? 1.44 kJ 10.18 kJ 12.48 kJ 25.04 kJ
August 21, 2013 by sean

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