A flask contains gas A and 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

Question

A $0.5 	ext{ dm}^3$ flask contains gas A and $1 	ext{ dm}^3$ 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. P = dRT/M. PA/PB = (dA/dB) * (MB/MA) = 2 * 2 = 4. Therefore, correct answer is C.

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