SATHEE: Thermodynamics Question 225

Thermodynamics Question 225

Question: The internal energy change in a system that has absorbed 2 Kcal of heat and done 500 J of work is

Options:

A) 8900 J

B) 6400 J

C) 5400 J

D) 7900 J

Show Answer

Answer:

Correct Answer: D

Solution:

[d] $ \Delta Q=\Delta U+\Delta W\Rightarrow 2\times 10^{3}\times 4.2=\Delta U+500 $

$ \Rightarrow \Delta U=7900J $

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Thermodynamics Question 225

Question: The internal energy change in a system that has absorbed 2 Kcal of heat and done 500 J of work is

Options:

Answer:

Solution:

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