Choose the right option:
Does the internal energy depend on the state of matter?
It does not depend
It depends
When a substance gives off heat, how does its internal energy change?
Increases
Decreases
Remains unchanged
How does the internal energy of a water heated change?
Increases
Decreases
Remains unchanged
A tin of milk is put in the refrigerator. What happens to its internal energy?
Increases
Decreases
Remains unchanged
A hot soup is poured into a cold plate. How do the internal energies of the soup and the plate change?
The internal energies of both the soup and plate increase.
The internal energies of both the soup and plate decrease.
The internal energy of the soup increases while that of the plate decreases.
The internal energy of the soup decreases while that of the plate increases.
The internal energies of both the soup and plate remain unchanged.
