Question
Physics Question on Thermodynamics
In a thermodynamic process work done by gas is 1000 J & heat supplied is 200 J. Find change in internal energy of gas?
A
800 J
B
-800 J
C
1200 J
D
-1200 J
Answer
-800 J
Explanation
Solution
Q=△U+Ω
Therefore, 200=△U+1000
Therefore, △U=-800J