Thermodynamics Question 229
Question: A gas is compressed from a volume of to a volume of at a constant pressure of . Then it is heated at constant volume by supplying 150 J of energy. As a result, the internal energy of the gas:
Options:
A) increases by 250 J
B) decreases by 250 J
C) increases by 50 J
D) decreases by 50 J
Show Answer
Answer:
Correct Answer: A
Solution:
[a] As we know,
or
Thus the internal energy of the gas in- creases by 250 J