1.

If the specific heats of dry air and water vapour are \[1.00\,\,kJ/kg\,-K\] and \[1.88\,\,kJ/kg\,-K\]respectively and the humidity ratio is 0.011, then the specific heat of moist air at \[25{}^\circ C\] and 50% relative humidity will be

A. \[1.0207\,\,kJ/kg-K\]       
B. \[1.869\,\,kJ/kg-K\]
C. \[1.891\,\,kJ/kg-K\]         
D. \[0.9793\,\,kJ/kg-K\]
Answer» B. \[1.869\,\,kJ/kg-K\]


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