What do you mean by Joule’ s mechanical equivalent of heat ?

1.	What do you mean by Joule’ s mechanical equivalent of heat ?
Answer» Whenever a given amount of work (W) is converted into heat, always the same amount of heat Q is produced. J = W/Q W = JQ The proportionally constant J is called Joule’s mechanical equivalent of heat. It may be defined as the amount of work that must be done to produce a unit quantity of heat.

Answer»

Whenever a given amount of work (W) is converted into heat, always the same amount of heat Q is produced.

J = W/Q

W = JQ

The proportionally constant J is called Joule’s mechanical equivalent of heat. It may be defined as the amount of work that must be done to produce a unit quantity of heat.

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What do you mean by Joule’ s mechanical equivalent of heat ?

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