Question
Physics Question on Thermodynamics
A domestic refrigerator is loaded with food and the door closed. During a certain period the machine consumes 1 KWh of energy and the internal energy of the system drops by 5000KJ. Find the net heat transfer for the system.
A
-8.6 MJ
B
86MJ
C
-86MJ
D
-8.6KJ
Answer
-8.6KJ
Explanation
Solution
The correct option is (D): -8.6KJ