Q.

Enthalpy of a substance is defined as

A. The sum of internal energy and the work done in forcing unit mass of substance into an enclosure at the constant pressure at which the substance exists
B. Sum of sensible heat + latent heat of substance
C. Total heat content of substance above zero degree centigrade
D. Sensible heat of water + work done in forcing unit mass of substance into an enclosure at constant pressure at which the substance exists
E. None of the above
Answer» C. Total heat content of substance above zero degree centigrade
697
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