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April 26, 2015

Search: 0.65 of argon gas is admitted to an evacuated 60 container at 60 . The gas then undergoes an isochoric heating to a temperature of 500 .

Number of results: 23,906

Science
PLEASE HELP ME!!!!! Which requires more energy? Heating up a 350 mL cup of coffee from 25C to 65C? or Warming the surface of a Lake (2,000,000,000 mL) from 28C to 29C. and Prove your answer.
March 7, 2012 by Julia

math
for each pair of substances, circle the substance with more thermal energy and explain why? A0 500g of water at 35 degree C VS. 500 g of water at 85 degree C B) 500 g of water at 35 degree C VS. 250 g of water at 35 degree C
December 19, 2011 by faith

statistics
Assume that the population proportion is .55. Compute the standard error of the proportion, ( ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals). a. 100? b. 200? c. 500? d. 1000?
April 14, 2014 by Vanessa

Calculus
Assume that a demand equation is given by q=9000-100p. Find the marginal revenue for the given production levels. a. 500 Units the marginal revenue at 500 units is
November 1, 2014 by Duane

10th grade
A computer manufacturer assembled 21,000 computers in October. For the month of November, they expect to double production. If a worker can assemble one computer per day, how many workers will be needed to complete the job in 28 days? a. 1,500 workers b. 750 workers c. 1,429 ...
September 9, 2010 by Ross

Chem
Consider the following cell: Pt(s)|H2(g, p1)|H+(aq, pHA)||H+(aq, pHC)|H2(g, p2)|Pt(s) If the partial pressure of hydrogen gas is the same for both half-cells, what is E for the cell? a) 0.0296 log(pHA/PhC) b) 0.0296 log(pHC/PhA) c) 0.0592 (pHA - pHC) d) 0.0592 (pHC - pHA) I ...
March 31, 2008 by Ginger

cultural diversity
What are some challenges with using and managing these alternative, renewable energy resources? o Name at least one other renewable energy resource not presented in the video. o Include a response to the following: Nonrenewable energy resources include coal, oil, and natural ...
April 25, 2008 by Anonymous

Physics
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 16C when it was installed. What is its change in length when the temperature drops to a frigid -39C? m
April 4, 2008 by Will

Physics
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 16C when it was installed. What is its change in length when the temperature drops to a frigid -39C?
April 6, 2008 by Happy

Physics
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 16C when it was installed. What is its change in length when the temperature drops to a frigid -39C?
April 6, 2008 by Mitch

physics
so when a hot object warms a cooler object, temperature does not flow between them. but are the temperature changes of the two objects equal?
April 21, 2008 by sake

math
The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.
January 24, 2010 by dylan

help physcis
At what cold-reservoir temperature (in degree C) would a Carnot engine with a hot-reservoir temperature of 350degree C have an efficiency of 70%?
March 30, 2010 by Naso

physics
By what factor is the resistance of a copper wire changed when its temperature is increased from 20C to 120C? (the temperature coefficient of resistivity for copper = 3.9 10‑3/C)
February 7, 2011 by Anonymous

Calc
The temperature at any point in the plane is given by function f(x,y) = 100/(x^(2)+y^(2)+1). Find a direction at the point (3,2) in which the temperature does not increase or decrease. Help, please? Thank you.
February 27, 2011 by Dani

Calc
The temperature at any point in the plane is given by the function T(x,y)= 100/(x^2+y^2+1). Find the direction at the point (3,2) in which the temperature does not increase or decrease. Help, please? Thanks!
February 28, 2011 by Brittany

physics
aluminum jet wing is 30m long when its temperature is 20deg c.At what temperature would the wing be 5cm(0.05m) shorter
June 22, 2012 by Anonymous

science
A balloon with an initial volume of 2.8L at a temperature of 296K is warmed to 375K . What is its volume at the final temperature? (Assume constant pressure.)
October 22, 2012 by michelle

engineering
Mary Williams needs to change a Fahrenheit temperature to Celsius. Use the Fahrenheit temperature of 80 degrees to test your solution.
April 8, 2013 by Anonymous

physics
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 22 C when it was installed. What is its change in length when the temperature drops to a frigid -37 C?
July 25, 2013 by Daniel

physics
A 5-kg block of ice is at a temperature of -27 C. How much heat must be added to the ice to produce 5 kg of liquid water with a final temperature of 35 oC?
July 29, 2013 by franko

physics
A steel section of the Alaskan pipeline had a length of 65.9 m and a temperature of 21.4 C when it was installed. What is its change in length when the temperature drops to a frigid -43.3 C?
November 25, 2013 by Anonymous

physics
A steel section of the Alaskan pipeline had a length of 65.1 m and a temperature of 15.8 C when it was installed. What is its change in length when the temperature drops to a frigid -31.2 C?
November 30, 2013 by Bob

Chemistry
If say 70 mL of water is heated vs 100 mL of water, would the temperature be different or does the amount of the substance not make a difference on the temperature Thanks!
February 27, 2014 by Laura

math
One day, the temperature outside increased by 6/10 every hour for seven hours. How much did the temperature increase that day?
March 24, 2014 by andrew

chemistry
when it absorbed energy from a 79.4 g sample of water whose initial temperature was 70.1 C. What is the specific heat of the metal in J/gC? How do i get the final temperature of water
February 10, 2015 by lace

Chemistry
If delta G for the dissociation of Borax at 30 degrees C (higher than room temperature) is positive, why does it dissolve at room temperature?
April 5, 2010 by Jane

physics
Give an example from daily life which shows that the celcius temperature scale is not an absolute temperature scale.
October 27, 2010 by Dimitris

physics
Give an example from daily life which shows that the celcius temperature scale is not an absolute temperature scale.
October 27, 2010 by Dimitris

geology
if the air temperature @ sea level were 23 C what would the air temperature be at a height of 2 km under avg conditions?
December 4, 2010 by lisa

math
At 5:00 a.m. the temperature in Orlando, Florida was already 80 degrees F. By 3:00 p.m. the temperature had risen to 97 degrees F. What is the difference in the temperatures?
November 3, 2011 by Sally

chemistry
Energy in the amount of 470 J is added to a 30.0 g sample of water at a temperature of 9.00 degrees C. What will be the final temperature of the water?
January 16, 2012 by Mary

chm
At a certain temperature the concentration of was 0.400 and that of was 0.235 . At equilibrium the concentration of was found to be 0.250 . What is the value of at this temperature?
February 9, 2012 by aa

science
If 1600cals of heat are added to 50g of water initally at a temperature of 10c what is the final temperature of the water?
December 7, 2012 by linece

Algebra
If a temperature dropped from 44degrees to -56 degrees in a 24 hour period, how many degrees did the temperature drop during that time?
February 26, 2013 by Stephanie

Chemistry
Energy in the amount of 420J is added to a 35g sample of water at a temperature of 10.0 C . What is the final temperature of water ?
October 22, 2014 by Amy

physics 100
An aluminum wing on a passenger jet is 30 m long when its temperature is 20C. At what temperature would the wing be 5 cm (0.05 m) shorter?
February 26, 2015 by jess

physics
a brass rod is 2 m long at a certain temperature. what is its length for a temperature rise of 100 K, if the expansivity of brass is 18 *10^-6K-1?
March 7, 2015 by Edward

Calculus
How would you begin this problem? On a standard summer day in upstate New York, the temperature outside can be modeled using the sinusoidal equation O(t) = 11 cos (pi/12 t) + 71, where t represents the number of hours since the peak temperature for the day. For 0 less than or ...
August 22, 2012 by Jillian

astronomy
on a domestic gas cooker the temperture in the hottest part of the flame is about 2200k.if salty eater is spilled in the flame then it becomes yellow-orange.measurements with a spectrometer show the presence of an emission line at 589n. 1) the solar spectrum shows an ...
March 3, 2008 by amy21

Math
The following data represent what 18 people said when they were asked to estimate the crowd at a public gathering: 325 450 500 500 550 575 575 600 600 650 650 700 700 700 725 750 800 900 State the mean, mode, median Mean: 325+450+500+500+550+575+575+600+ 600+650+650+700+700+...
April 5, 2011 by William

Science
Trini adds 10g of baking soda to 100g of vinegar. The mixture begins to bubble. When the bubbling stops, trini finds the mass of the resulting mixture. She determines its mass is 105g. Why has the mass changed? A. A gas has formed and left the mixture B. Vinegar evaporated ...
October 20, 2013 by Jessica

chemistry
1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced? B. If 1.621 grams CO2 are released, how many ...
January 7, 2010 by eng

business-ACCOUNTING
Income from operations, $151,800 The following events took place for Fed Inc. during October 2012, the first month of operations as a producer of road bikes: Purchased $427,000 of materials. Used $367,500 of direct materials in production. Incurred $315,000 of direct ...
March 20, 2012 by Ashley

Science
1. How did planetesmals form planets? They broke apart into smaller chunks They collided and stuck together They cooled and pulled ice together****** They began to rotate 2. What distance was used to define the astronomical unit (AU)? The average distance across the sun, its ...
April 17, 2015 by Hailee

Nitrogen cycle
explain how the phosphorus cycle differs from the nitrogen cycle. The phosphorus cycle does not exist in a gaseous state and does not enter in the atmosphere. It cycles from land to sedimants in the ocean and back to land. The nitrogen cycle exists is a form of gas which ...
July 6, 2010 by Amanda

Chemistry
A 35.00 mL sample of water at 30.0C is placed in an open container with an external pressure of 1.00 atm. 30.0 kJ of heat is added to the water sample. The density of water is 1 g/mL. (a) How many grams of liquid water remain at the end of the process? Like, the equation I ...
February 11, 2015 by N

HEALTH
10. Based on calorie consumption and expenditure, which person will most likely gain weight the slowest? A. Madeline takes in 2,500 calories a day, and uses 2,200 calories during the day. B. Fernando takes in 2,550 calories a day, and uses 2,500 calories during the day. C. ...
June 2, 2014 by Mstv

algebra
question; you research the average cost of a tank of gasoline for a certain type of car for several recent years to look for trends. the table shows your data. what is the equation for a line of best fit? how much would you expect to pay for a tank of gas in the year 2024? ...
September 17, 2012 by brandon

Physics
Please help me with the following problem: Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this ...
March 4, 2014 by Brady

Economics/Math
The demand curve for a monopolist is Qd = 500 - P and the marginal revenue function is MR = 500 - 2P. The monoploist has a constant marginal and average total cost of $50 per unit. a. Find the monopolist's profit maximizing output and price b.Calculate the monopolist's profit...
November 8, 2009 by too old

Economics/Algebra
The demand curve for a monopolist is Qd = 500 - P and the marginal revenue function is MR = 500 - 2P. The monopoloist has a constant marginal and average total cost of $50 per unit. a. Find the monopolist's profit maximizing output and price b.Calculate the monopolist's profit...
November 9, 2009 by too old

To: Economyst - Can you please help me?
The demand curve for a monopolist is Qd = 500 - P and the marginal revenue function is MR = 500 - 2P. The monopoloist has a constant marginal and average total cost of $50 per unit. a. Find the monopolist's profit maximizing output and price b.Calculate the monopolist's profit...
November 11, 2009 by too old

check answer
From a hot air balloon, Sean looks through an angle of depression of 35 degrees to see LeAnn on the on the ground. If Sean and LeAnn are 500 ft. apart by the line of sight distance, to the nearest foot, how far is Sean off the ground? I used 500(cos55)
June 9, 2014 by Anonymous

physics
Many of you may have noticed the phenomenon that basketballs get flat if the weather is cold. If a basketball was inflated to agaugepressure of 60,000 Pa when the temperature outside was20∘C, what is thegaugepressure inside the basketballin Pawhen the temperature ...
May 27, 2013 by stranger

Chemistry
How many moles of gas must be forced into a 3.5 L ball to give it a gauge pressure of 9.4 psi at 25 degrees C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.7 psi so that the total pressure in the ball is 24.1 psi Ok so I'm ...
October 18, 2011 by Monique

Could someone check my answers please? :)
1. How did planetesmals form planets? (1 point) A. They broke apart into smaller chunks. B. They collided and stuck together.** C. They cooled and pulled ice together. D. They began to rotate. 2. Which parts of the suns atmosphere become visible during a total solar eclipse...
March 11, 2015 by coolkid

Medical Information management and office practice
Jane-Doe is admitted to the hospital. Her admission is assigned a new medical record number 10-50-18. She has another record number 00-05-61 from a previous hospitalization. The information from 00-05-61 was moved forward to the new admission 10-50-18. What number/filing ...
December 21, 2010 by JULIANNA

science
as temperture rises solids become more soluble in water,but gases become more less soluble.if a soft drink contain high concentration of sugar and carbon dioxide which of the following may be expected to happe if it is cooled down? 1)sugar amy percipatate out2.gas bubbles may ...
October 9, 2007 by jessica

chemistry
If 950 mL of 0.800 M aqueous Na2CO3 and 920 mL of 0.565 M aqueous HCl are reacted stoichiometrically according to the balanced equation, how many milliliters of 0.800 M aqueous Na2CO3 remain? Round your answer to 3 significant figures. Na2CO3(aq) + 2HCl(aq) CO2(g) + 2NaCl(...
June 2, 2010 by Judy

Chemistry
A sample of oxygen gas is collected by displacing water from an inverted bottle as shown in the diagram below. The volume of O2(g) collected is 400.0ml at 25 degree Celsius. The atmospheric pressure is 680 torr and the vapor pressure of water at 25 degree Celsius is 23.8 torr...
February 3, 2011 by K

Chemistry
Mg + 2HCl -> MgCl2 + H2 Over an interval of 1.00s, the mass of Mg changes by -0.011g What is the corresponding rate of consumption of HCl (in mol/s)? I got 9.0E-4 mol/s and that's the right answer. But I'm having problems with the next question. Calculate the corresponding ...
February 24, 2013 by a Canadian

Math
You earn $29,500 a year plus 4.1% commission on all sales. Last year you had $128,500 in sales. How much did you earn last year?
January 9, 2015 by Asjd

science ms sue plz help
1. Which layer of the sun's atmosphere are you looking at when you look at an image of a sun? A) Photosphere B) Chromosphere C) Corona D) Prominence 2. What materials could have been found in a giant cloud that formed the solar system? A- hydrogen and helium B- hydrogen and ...
April 10, 2015 by need help plz

chemistry
A sample of chlorine has a volume of 2.5 L when the temperature is 84.1 degC. Assuming that the pressure is constant, at what temperature will the volume be 1750 mL? (Express your answer in Kelvins.)
March 28, 2008 by zach

Physics
A 10 kg block of ice has a temperature of -13C. The pressure is one atmosphere. The block absorbs 4.10 106 J of heat. What is the final temperature of the liquid water?
April 6, 2008 by Tim

physics
11.0 g of aluminum at 200C and 20.0 g of copper are dropped into 54.0 of ethyl alcohol at 15C. The temperature quickly comes to 25.0. What was the initial temperature of the copper?
March 22, 2011 by Anonymous

chemistry
A 10 kg block of ice has a temperature of -13C. The pressure is one atmosphere. The block absorbs 4.11 106 J of heat. What is the final temperature of the liquid water?
May 10, 2011 by Anonymous

chem
Two hundred grams of a substance requires 0.52 kJ of heat to raise its temperature from 25C to 45C. q = mCT. Mass (m) is in grams. Temperature is in degrees Celsius.
May 17, 2011 by Pat

Math
The temperature at the top of Mt. Washington one morning was -10 degrees Fahrenheit. With the conversion formula C=5/9(F-32). What was the temperature in degrees Celsius (to the nearest degree)?
September 10, 2012 by Isaac

chem
What is the final temperature (degrees celcius) of 1.36g of water with an initial temperature of 23.0degrees celcius after 6.420J of heat is added to it?
November 19, 2012 by Chironjit

chem
A 6.75-g sample of gold (specific heat capacity = 0.130 J/g C) is heated using 55.8 J of energy. If the original temperature of the gold is 25.0C, what is its final temperature?
March 14, 2013 by dave

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
The Eiffel Tower is a steel structure whose height increases by 19.5 cm when the temperature changes from -9 to +41 oC. What is the approximate height (in meters) at the lower temperature?
July 30, 2013 by cammy

Chemistry
Would heating a tertiary alcohol change its structure and reaction with hydrochloric acid and potassium permanganate (KMnO4)? Tertiary alcohols resist oxidation, but can be oxidised by reagents such as 2,3-dichloro-5,6-dicyano-1,4-benzoquinone.
October 9, 2006 by Laura

Math
Month. Temperature January 41f February 45f March. 54f April. 62f May. 69f Between which two months in Atlanta does thaw normal temperature change the most?
November 29, 2012 by Shion

chemistry
What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate
October 8, 2010 by Anonymous

chemistry
What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate
October 9, 2010 by Anonymous

chemistry
What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate
October 14, 2010 by Anonymous

chemistry
What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate
November 8, 2010 by Anonymous

physics
A small object with mass 4.05 kg moves counterclockwise with constant speed 1.70 rad/s in a circle of radius 3.15 m centered at the origin. It starts at the point with position vector 3.15 m. Then it undergoes an angular displacement of 9.10 rad. (a) What is its new position ...
March 11, 2012 by Maria

earh science
earths early atmosphere formed during the archean era. Which gas was generally absent from the atmosphere at this time http://en.wikipedia.org/wiki/Earth's_atmosphere#Evolution_of_the_Earth.27s_atmosphere
April 6, 2007 by jenno

science
in shell and tube type of condenser, the flue gas mixture of acetaldehyde,oxygen and nitrogen at 17391.17Kg/hr enters to the condenser at 75 degree celcius and leaves at 20 degree celcius,while the cooling water enters at 17 degree celcius and leaves at 37 degree celcius....
May 18, 2012 by hagos

Math
The temperature at 6,000 m altitude is 11 degrees Celsius. At 4,000 m, the temperature is at 2 degrees Celsius. How much colder is it at 6,000 m than at 4,000 m? What is the difference in temperature?
September 12, 2013 by Ellie

Thermodynamics
Design Problem- A steam boiler may be thought of as a heat exchanger. The combustion gases may be modeled as a streram of air because their thermodynamic properties are close to those of air. Using this model, consider a boiler that is to convert saturated liquid water at 500 ...
October 31, 2012 by Alyssa

Thermodynamics
Design Problem- A steam boiler may be thought of as a heat exchanger. The combustion gases may be modeled as a streram of air because their thermodynamic properties are close to those of air. Using this model, consider a boiler that is to convert saturated liquid water at 500 ...
October 31, 2012 by Alyssa

Chemistry
A change of temperature equal to one Kelvin is eual to a change of temperature of how many degrees Celsius? 1
January 19, 2007 by Dennis

Algebra 1
Fnd the temperature in degrees Celcius(C) given a temperature of 77 degrees Fahrenheit(F) using the formula C=5/9(F-32).
September 21, 2009 by Shavaleir

physics
If 1200 cal of heat are added to 50 g of water initially at a temperature of 15 oC, what is the final temperature of the water?
May 4, 2011 by mike

math
In 1980 in Montana the temperature rose from -32 degree's f to 50 degree's f in 12 hours. How much did the temperature increase?
August 30, 2012 by paul

math
In 1980 in Montana the temperature rose from -32 degree's f to 15 degree's f in 12 hours. How much did the temperature increase?
August 30, 2012 by paul

math
In 1980 in Montana the temperature rose from -32 degree's f to 15 degree's f in 12 hours. How much did the temperature increase? is it -47 or +47?
August 30, 2012 by paul

APPLIED CHEMISTRY
MOLE FRACTION AND MOLALITY IS INDEPENDENT OF TEMPERATURE BUT NORMALITY AND MOLALITY CHANGES WITH TEMPERATURE, WHY?
December 27, 2012 by ABDULLAH

physics
An aluminum wing on a passenger jet is 38 mlong when its temperature is 23C.At what temperature would the wing be 2 cm (0.02 m) shorter?
March 18, 2013 by Brian

Chemistry
A scuba diver takes a 2.3 balloon from the surface, where the pressure is 1.1 and the temperature is 28, to a depth of 35 , where the pressure is 4.5 and the temperature is 14.
March 19, 2013 by Mary

physics 102
An aluminum wing on a plane is 30.6 m long when the temperature is 20 oC. At what temperature would the wing be 0.06 m shorter
April 27, 2013 by pocholo

math
the temperature is -10 degrees outside. The temperature inside is 72 degrees. what is the difference between the two temperatures?
September 5, 2013 by Nate

mathematics1
what will the total increase in temperature be after 7 minutes? after 4minutes the temperature has increased by 24 degrees.
September 3, 2014 by karloz

Math/Science
The capacity of a beaker is 150mL. How many beakers can be filled from a 4L container?
August 26, 2009 by Easton

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