1. A gas mixture consists by mass of 70% C02 , 8% H2 , 12% CH4 and 10% 02 . Calculate (a) the percentage composition by moles and (b) the molecular mass of the mixture. Values of molecular mass are: C02 44, H2 2, m 16 and 0 2 32.
2. . Humid air of pressure 1.0125 bar and at 24°C has a relative humidity of 73.64%. What are (a) the specific humidity and (b) the dew point temperature?
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