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The total heat taken up by the oceans over the past 150 years was about 1,000 times the annual energy use of the entire global population.

He went on to show that the total heat produced in any voltaic circuit was proportional to the electromotive force E of the battery and to the number of equivalents electrolysed in it.

The total expenditure of heat of a man at rest must be equal to the total heat of combustion.

The second is the actual heat efficiency, or the ratio of the heat turned into work to the total heat received by the engine.

Indicated thermal efficiency may be defined as the proportion of the total heat of combustion which appears as work done by the explosion and expansion upon the piston.