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In a thermodynamic process, a system absorbs 2 k cal of heat a

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In a thermodynamic process, a system absorbs 2 k cal of heat and at the same time does 800 J of work. The change in internal energy of the system is

7600 J

2000 J

4800 J

-7600 J

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In a thermodynamic process, a system absorbs 2 k cal of heat and at the same time does 800 J of work. The change in internal energy of the system is

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Text solutionVerified

In a thermodynamic process, a system absorbs 2 k cal of heat and at the same time does 800 J of work

By calorie to joules conversion

we have

1 c a l = 4.2 J

∴

2 Kc a l = 8400 J

Hence by first law of thermodynamics

we have,

δ U = δH - W = 8400 - 800 = 7600 J

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Question Text	In a thermodynamic process, a system absorbs 2 k cal of heat and at the same time does 800 J of work. The change in internal energy of the system is
Answer Type	Text solution:1
Upvotes	150