Chemical Thermodynamics Question 123

Question: The work done by a system is 8 joule, when 40 joule heat is supplied to it. What is the increase in internal energy of system [BHU 2001]

Options:

A) 25 J

B) 30 J

C) 32 J

D) 28 J

Show Answer

Answer:

Correct Answer: C

Solution:

$ q=40,J $

$ w=-8,J $ (work done by the system) $ \Delta E=q+w=40-8=32,J $ .



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