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1. |
100 Kg mol of a gas mixture input is given to a membrane with 30% O2 and 70% N2, the waste contains 60% of the input and the product contains 10% O2 and 90% N2, what are the number of moles of O2 in the waste? |
A. | 12 |
B. | 16 |
C. | 34 |
D. | 42 |
Answer» D. 42 | |