Liquid ‘M’ and liquid ‘N’ form an ideal solution. The vapour pressures of pure liquids ‘M’ and ‘N’ are 450 and 700 mmHg, respectively, at the same temperature. Then correct statements is : (xM = Mole…

Question

Liquid ‘M’ and liquid ‘N’ form an ideal solution. The vapour pressures of pure liquids ‘M’ and ‘N’ are 450 and 700 mmHg, respectively, at the same temperature. Then correct statements is :
(xM = Mole fraction of ‘M’ in solution ;
xN = Mole fraction of ‘N’ in solution;
yM = Mole fraction of ‘M’ in vapour phase;
yN = Mole fraction of ‘N’ in vapour phase)

Accepted Answer

Correct answer: D. (d) P°_M=450mmHg, P°_N=700 mmHg P_M=P°_Mx_M=y_MP_T P°_M= y_Mx_M (P_T ) Similarly, P°_N= y_Nx_N (P_T ) Given, P°_M<P°_N y_Mx_M< y_Nx_N y_My_N< x_Mx_N

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