QUESTION 1
In the first law of thermodynamics, , what does Q stand for?
the internal energy of the system
the work done by the piston
the change in the internal energy of the system
the heat added to the system
QUESTION 2
If the thermal energy of the system increases by 400 J, and 1,100 J of heat were added to the system, how much work did the system do?
400 J
700 J
1,500 J
1,100 J