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Heat is ___________ when transferred to a system.

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Heat is ___________ when transferred to a system.

(a) Positive

(b) Negative

(c) Zero

(d) None of the mentioned

This question was addressed to me during a job interview.

This intriguing question comes from Energy Balances in chapter Energy Balances of Chemical Process Calculation

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Best answer
The correct choice is (a) Positive

The explanation is: Heat is Positive when transferred to a system.

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