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5 J of heat is supplied to a steady state system, what is the work done by the system?

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5 J of heat is supplied to a steady state system, what is the work done by the system?

(a) – 5 J

(b) 5 J

(c) 0

(d) 10 J

This question was posed to me in an international level competition.

I'm obligated to ask this question of Energy Balances for Closed, Steady-State Systems topic in chapter Introduction to Energy Balances for Processes without Reaction and Calculation of Enthalpy Changes of Basic Chemical Engineering

1 Answer

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Best answer
Correct choice is (b) 5 J

The best explanation: 0 = 5 – W, => W = 5 J.

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