A 2-mol ideal gas system undergoes an adiabatic process where it expands and does 24 J of work on its environment.What is its change in internal energy?
A)−24 J
B)−12 J
C)zero
D)+24 J
E)+12 J

Question

A 2-mol ideal gas system undergoes an adiabatic process where it expands and does 24 J of work on its environment.What is its change in internal energy?​
A)−24 J
B)−12 J
C)zero
D)+24 J
E)​+12 J

Quizplus · Accepted Answer

For an adiabatic process, the change in internal energy is equal to the work done by the system, but with a negative sign because work is done on the environment, thus decreasing the system's internal energy.

A 2-Mol Ideal Gas System Undergoes an Adiabatic Process Where