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Heat Transfer
Page 4
Questions (4,996)
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT/dt = -k(T - A), where T is the temperature of
5 answers
asked by
Erika
5,336 views
How much heat is required to raise the temperature of 25g of aluminum from 25.0 C to 100 C?
Convert this value to joules?
3 answers
asked by
Santiago
1,526 views
A 135g sample of ice is in a freezer at -21 degrees celsius. It is removed from the freezer and allowed to melt and the
3 answers
asked by
Tegan
898 views
Work it out. How many joules of heat is given out when pieces of iron of mass 50g and specific heat capacity =460kgk cools from
6 answers
asked by
Peter
742 views
In an experiment, 23.0 g of ice at –25°C is converted into steam with a temperature of 124°C. How much heat is required for
2 answers
asked by
Stephen
595 views
A steam engine's boiler completely converts 155 kg of water to steam. This process involves the transfer of 3.5 x 10^8 J by
7 answers
asked by
Lindsay
2,026 views
A flask partially full of liquid water is heated to boiling and capped cold water is poured over the flask. The water boils even
3 answers
asked by
Noel
1,631 views
55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g
3 answers
asked by
Y0gi
1,152 views
how many liters of CH4 measured at 23.4C and 768mmhg must be burned to provide the heat needed to vaporize 3.78L of water at
2 answers
asked by
lennie
897 views
Thermal Energy Transfer Quick Check
3 of 53 of 5 Items Question Use the table of temperatures measured in two areas of a house to
1 answer
asked anonymously
134 views
The transfer of heat energy by the circulation of warm air is called
A thermal convection. B thermal conduction. C cyclonic
1 answer
asked anonymously
106 views
How does a heater in one corner of a fish aquarium warm the whole aquarium?(1 point)
Responses The heater warms the glass of the
1 answer
asked by
aaagtuygy
37 views
The graph models the temperature in degrees Fahrenheit, of a cup of hot water placed in a refrigerator. Based on the graph, what
1 answer
asked anonymously
122 views
W17.The pV-diagram of figure below shows a series of thermodynamic processes.
In process ab, 150J of heat is added to the system;
1 answer
asked by
Jeremiah latkuoth
46 views
If cans of soda or place in the chest full of ice, does the coldness from the ice go into the soda or does the heat from the
3 answers
asked anonymously
25 views
A 15.7g block of an unknown metal is warmed to 53.2o C and plunged into an insulated beaker containing 32.5g of water initially
4 answers
asked by
Salma
989 views
A 10-kg iron ball is dropped onto a pavement from a height of 100 m. Suppose half of the heat generated goes into warming the
4 answers
asked by
Ceres
4,351 views
1) Emily is testing her baby's bath water and finds that is too cold,so she adds some hot water from kettle on the stove. If
5 answers
asked by
Isis
3,700 views
In a building, air moves due to currents caused by temperature differences. Which statement best describes these currents?
A)
1 answer
asked by
ray
198 views
When would a cup of hot coffee left on the counter stop transferring heat?
a When it has gained all of the air's thermal energy b
2 answers
asked by
kali
200 views
This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of
2 answers
asked by
no name
119 views
Explain how atoms move/pass in conduction.
This is my answer. When heat comes in contact with matter it makes the atoms vibrate.
10 answers
asked by
Jadah
1,015 views
Calculate the number of Joules released when 75.0 g of water are cooled from 100.0 degrees Celsius to 27.5 degrees Celsius
5 answers
asked by
Josh
2,509 views
If the price of electrical enegy is $0.10 per kilowatt *hour, find the cost of using electrical energy to heat the water in a
5 answers
asked by
Dave
2,399 views
Emily makes 0.250 kg of hot tea at 99.0°C. How much ice at 0.00°C must she add to the tea so that the mixture reaches a final
4 answers
asked by
Physics
1,218 views
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his
5 answers
asked by
Isis
4,834 views
Thermal energy will always transfer from the ________ object to the _________ object.
a solid; liquid b coolest; hottest c
1 answer
asked by
kali
129 views
Add a thermometer to the olive oil. Place the brick back on the heater and re-heat it to the highest temperature. Drop the brick
1 answer
asked by
T
96 views
A student holds an ice cube in her hand. Which of the following BEST describes the movement of heat that will happen?
a Heat will
1 answer
asked by
6
191 views
Which substance changed temperature the most as a result of dropping in the heated brick?
a water b olive oil c both substances
1 answer
asked by
A
155 views
A partition through which heat can pass from one system to another is said to be
Select one: isochoric diathermic isothermal
4 answers
asked anonymously
289 views
1. How much ice at -10 degrees Celsius is required to cool a mixture of 0.1 kg ethyl alcohol and 0.1 kg water from 20 degrees
3 answers
asked by
Akitsuke
941 views
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 5.43 g of C6H6 is added to 5.69 kg of
4 answers
asked by
Shannon
2,908 views
A pot of water is being heated on the stove top. The water molecules closest to the burner rise in the pot when they gain
1 answer
asked by
Hi
640 views
An increase in thermal energy leads to _____
1. a decrease in heat and an increase in kinetic energy until a phase change occurs.
1 answer
asked by
Seth
200 views
A 100 g mass of aluminum at 100 deg C is placed in 100 g of water at 10 deg C. The final temperature of the mixture is 25 deg C.
4 answers
asked by
Lakshmi
1,234 views
From the data below, calculate the total heat (in J) needed to convert 22.00 g of icea t -6.00 C to liquid water at 0.500 C.
melt
4 answers
asked by
Dean
4,550 views
A 50.0G SILVER SPOON AT 20.0C IS PLACED IN A CUP OF COFFEE AT 90.0C. HOW MUCH HEAT DOES THE SPOON ABSORB FROM THE COFFEE TO
2 answers
asked by
priscilla
812 views
In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00 g *.003kg) in boiling water.
4 answers
asked by
Tia
2,218 views
The soup in a bowl is too hot to eat. Although there are no ice cubes in the freezer, there are several stainless steel spoons
4 answers
asked by
Anon
1,964 views
HELPPP PLSS!!
Use the table of temperatures from several areas to complete the statement. Area | Temperature (ºC)
4 answers
asked by
cat
533 views
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 16.1 g, and its
4 answers
asked by
1231az
659 views
1. (a) 500g of copper is heated from 30 degree celcius - 120 degree celcius?. (b) if the same quantity of heat is supplied to
3 answers
asked by
Precious
511 views
Consider the specific heats H2O(s) =2.09 J/g ¡¤◦C,H2O (§¤) = 4.18 J/g ¡¤◦C, and H2O(g) = 2.03 J/g ¡¤◦C. The heat
3 answers
asked by
gabriella
954 views
Which of the following correctly identifies the methods of heat transfer?
A. Convection-Radiation-Conduction B.
10 answers
asked by
Olive Sue :D
2,722 views
If a 50.0g silver spoon at 20.0 degrees C. How much heat does the spoo absorb from the coffee to reach a temperature of
2 answers
asked by
Lady T.
543 views
What amount of energy is required to melt a 26.9 g piece of ice at 0oC?
The heat of fusion of ice = 333 Jg-1 Heat required to
2 answers
asked by
tanner
885 views
25 kg of ice at 0° C is combined with 4 kg of steam at 100° C. What is the final equilibrium temperature in ° C of the
5 answers
asked by
Maya
6,098 views
Mrs. Wilson poured hot tea into a cup and stirred it with a metal spoon. After a few moments, she noticed that the sppon was
3 answers
asked by
kali
210 views
2.) Pounding a nail into wood makes the nail warmer. Consider a 5-g steel nail 6 cm long and a hammer that exerts an average
4 answers
asked by
Mary
6,199 views
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Applied Physics or Thermodynamics
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