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1. |
A high energy producing gas contains the following mixtures of gases, 20% H2O, 40% CH4 and 40% CO2. The average molecular weight of the gas is? |
A. | 25.6 |
B. | 26.6 |
C. | 27.6 |
D. | 28.6 |
Answer» D. 28.6 | |