A binary mixture of oxygen and nitrogen with partial pressures in the – McqOptions

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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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