A system initially has an internal energy E of 501 J.It undergoes a process during which it releases 111 J of heat energy to the surroundings,and does work of 222 J.What is the final energy of the system,in J?

Question

Quizplus · Accepted Answer

The final energy of the system can be calculated using the first law of thermodynamics: ΔE = Q - W. Here, ΔE is the change in internal energy, Q is the heat exchanged, and W is the work done by the system. The system releases 111 J of heat (Q = -111 J) and does 222 J of work (W = 222 J). So, ΔE = -111 J - 222 J = -333 J. The final energy is 501 J - 333 J = 168 J.

A System Initially Has an Internal Energy E of 501