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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 | |