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1. |
A gas mixture consists of 3 kg of O2, 5 kg of N2 and 12 kg of CH4. The mass fraction and mole fraction of O2 are |
A. | 0.25 and 0.125 |
B. | 0.15 and 0.092 |
C. | 0.25 and 0.092 |
D. | 0.15 and 0.125 |
Answer» C. 0.25 and 0.092 | |