1.

A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10 5 N/m2, find mass fraction of oxygen

A. 0.133
B. 0.233
C. 0.333
D. 0.433
Answer» C. 0.333


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