A 0.5 dm^3 flask contains gas A and 1 dm^3 flask contains gas B at the same temperature. If density of A is twice that of B and the molar mass of A is half of B, then the ratio of pressure exerted by

Question

A 0.5 dm^3 flask contains gas A and 1 dm^3 flask contains gas B at the same temperature. If density of A is twice that of B and the molar mass of A is half of B, then the ratio of pressure exerted by gases is

Prashant Kotian · Accepted Answer

Correct answer: C. Since P = dRT/M, the pressure ratio is P_A / P_B = (d_A / d_B) * (M_B / M_A). Substituting the ratios: P_A / P_B = 2 * (1 / 0.5) = 4.

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