What are the sign conventions of heat and work in physics???​

According to the classical sign convention, heat transfer to a system and work done by a system are positive; heat transfer from a system and work done on a system are negative. The system shown below has heat supplied to it and work done by it.

Hello There!!

Explanation:

This is your

•Heat absorbed by the system = q+ (positive) Heat evolved by the system = q− (negative) •Work done on the system = w+ (positive)

Work done by the system = w− (negative)

hope this helps,have a great day!!

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a straight line sloped