Chemical Thermodynamics Question 318
Question: If 50 calories are added to a system and system does work of 30 calories on surroimdings, the change in internal energy of system is
Options:
A) 20 cal
B) 50 cal
C) 40 cal
D) 30 cal
Show Answer
Answer:
Correct Answer: A
Solution:
- $ q=\Delta E+w $
$ 50=\Delta E+30 $
$ \therefore \Delta E=20,cal $
