viewquestions/12230/Moist air is treated as an ideal gas mixture of water vapor and dry air molecular weight of air 2884 and molecular weight of water 18 At a location the total pressure is 100 kPa the temperature is 30C and the relative humidity is 55 Given that the saturation pressure of water at 30C is 4246 Pa the mass of water vapor per kg of dry air is grams

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Given the atomic weight of Fe is 56 and that of C is 12, the weight percentage of carbon in cementite (Fe3C) is ________

A. 1.25
B. 3.25
C. 6.67
D. 9.12
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