Thermodynamics Question 106
Question: Heat given to a system is 35 joules and work done by the system is 15 joules. The change in the internal energy of the system will be
[MP PET/PMT 1988]
Options:
A) ? 50 J
B) 20 J
C) 30 J
D) 50 J
Show Answer
Answer:
Correct Answer: B
Solution:
$ \Delta U=\Delta Q-W=35-15=20\ J $
