Specific Heat Capacity of Copper: How to Calculate with Given Variables?

In summary, a 110g copper cube is heated to 100 Celcius degrees and then transferred to a well insulated aluminium can with 80g mass and 200g of water at 10 C degrees. After stirring, the final temperature is 14 C. The specific heat capacity of the copper can be calculated assuming negligible heat loss to the surroundings. The change in temperature of the copper is -86C and the change in temperature of the water is +4C. The question of whether heat supplied is equal to heat gained is also discussed.
  • #1
Kenny09
9
0

Homework Statement



A copper cube mass of 110g is heated to a temperature of 100 Celcius degrees and then rapidly transferred to a well insulated aluminium can of mass 80g containing 200g of water at 10 C degrees . If the final temperature of the cube and water ( after stirring ) is 14 C .

( c of water and al are 4.2 x 10^3 J/Kg/K and 9.1 x 10^2 J/Kg/K

Homework Equations



Calculate the specific heat capacity of the copper . Assuming heat loss to the surrounding is negligible .

The Attempt at a Solution



Heat supplied = heat loss . However i`m struggling with the change in temperature .
 
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  • #2
The change in temperature of the copper is -86C and the change in the water is +4C?? Is that what you are asking??
 
  • #3
No i mean about the change of a can .
It should be heat supplied = heat gained isn't it ?
Q of Copper cube = Q of can + Q of Water ?

If can and water are only one object then why would they give us C of aluminum ?
 
  • #4
I think you can take the temperature change of the can to be the same as the water it contains.
 

1. What is thermal energy?

Thermal energy is a type of kinetic energy that is created by the movement of particles within an object. It is often referred to as heat energy and is measured in joules (J).

2. How is thermal energy measured?

Thermal energy is measured using a device called a thermometer which uses temperature scales such as Celsius or Fahrenheit to determine the level of thermal energy present in an object.

3. What are the sources of thermal energy?

Thermal energy can come from a variety of sources including the sun, chemical reactions, friction, and even the Earth's core. It can also be generated by humans through burning fossil fuels or using electricity.

4. How does thermal energy transfer between objects?

Thermal energy can be transferred through three main methods: conduction, convection, and radiation. Conduction is the transfer of heat through direct contact, convection is the transfer of heat through the movement of fluids, and radiation is the transfer of heat through electromagnetic waves.

5. How is thermal energy used?

Thermal energy is used in a variety of ways, including but not limited to heating homes and buildings, cooking food, generating electricity, and powering industrial processes such as manufacturing. It is also used in technologies such as refrigerators and air conditioners to cool objects or spaces.

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