AP EAMCET · PHYSICS · Thermodynamics
A gas absorbs 18 J of heat and work done on the gas is 12 J, Then the change in internal energy of the gas
- A 24 J
- B 36 J
- C 6 J
- D 30 J
Answer & Solution
Correct Answer
(D) 30 J
Step-by-step Solution
Detailed explanation
For the gas, \(\mathrm{Q}=18 \mathrm{~J}, \mathrm{~W}=-12 \mathrm{~J}\) \(\therefore \quad\) Change in internal energy, \(\Delta \mathrm{U}=\Delta \mathrm{Q}-\mathrm{W}=18-(-12)=30 \mathrm{~J}\)
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