Question

When a gas releases 36.980 kJ of heat and has 62,860.5 J of work performed:

a. Internal energy increases
b. Internal energy decreases
c. No change in internal energy
d. Temperature decreases

Answer 1

The heat released from the gas and the work performed on the gas have opposite effects on the internal energy, resulting in no change in internal energy.

Step-by-step explanation:

In this case, the gas releases heat of 36.980 kJ and has 62,860.5 J of work performed. The work done is positive, indicating that work is done on the gas and increases its internal energy. However, the heat released from the system is negative, indicating that it flows from the system to the surroundings and decreases the internal energy of the gas.

Therefore, the correct answer is (c) No change in internal energy.