1.

Cp of water is 10 J/oC and that of steam is 15 J/oC, what is the enthalpy change of water from 75oC to 110oC at standard conditions, if the later heat of vaporization of water is 245 J?

A. 395 J
B. 645 J
C. 840 J
D. 999 J
Answer» C. 840 J


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