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Heat is negative when transferred to the _____________

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Heat is negative when transferred to the _____________

(a) System

(b) Surrounding

(c) Boundary

(d) None of the mentioned

The question was posed to me in a national level competition.

This interesting question is from Energy Balances topic in portion Energy Balances of Chemical Process Calculation

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Best answer
Correct choice is (a) System

The best explanation: Heat is negative when transferred to the surrounding .

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