1.

At 40^@C, the vapour pressures (in torr) of methyl alcohol (A) and ethyl alcohol (B) solution is represented by: P=120X_A + 138, where X_A is mole-fraction of methyl alcohol, then the value of lim X_A rarr 0 P_B^@/X_B and lim X_B rarr 0 P_A^@/X_A are:

Answer»

138, 258
258, 138
120, 138
138, 125

Answer :A


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