Thread: Heat Temperature, and Thermal Energy

Which is true about heat?
*Heat is the absolute energy of a system
*Heat transfers from colder to a warmer substance
*Heat is proportional to the change in temperature in condition
*Heat is not dependent on the mass of an object

I am thinking ...Heat is proportional to the change in temperature in condition

When ice melts,
*there is an increase in the temperature of the surrounding environment during melting.
*the specific heat of the substance is the same
*the ice releases heat during the process
*there is no change in the temperature of the surrounding environment

I am thinking ...the ice releases heat during the process

Three objects are in the thermal quilibrium.
If the temperature of the first object is 25.0 degree Celsius, what can we say about the temperatures of the second and the third object?
*The third object is colder than the second object
*the second and the third objects each have temperatures of 25.0 degree Celsius
*The second object is warmer than the second object
*none of the above

I am thinking ...none of the abovev what do you think, guys?

When ice melts,
...... ...... *the ice releases heat during the process ........

Focus on just this one of your four propositions.

Any substance, whether solid, liquid or gas, that 'releases' heat will, during the process of this release,

- maintain constant temperature?
- increase its temperature?
- decrease its temperature?

You'll need to come up with reasoning to back up whichever choice you make.

Now apply it to
1. ice which is at, but not past, melting point.
2. water which is at, but not past, freezing point.

When each of these releases heat, what happens?

Originally Posted by Cyberdroid

Three objects are in the thermal quilibrium.
If the temperature of the first object is 25.0 degree Celsius, what can we say about the temperatures of the second and the third object?
*The third object is colder than the second object
*the second and the third objects each have temperatures of 25.0 degree Celsius
*The second object is warmer than the second object
*none of the above

I am thinking ...none of the abovev what do you think, guys?

I think you need to consider the meaning of the word equilibrium.