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A and B are two identical vessels. A con...

A and B are two identical vessels. A contains 15 g of ethane at 298 K and 1 atm. The vessel B contains 75 g gas `X_2` at the same temperature and pressure. The vapour density of `X_2` is

A

75

B

150

C

37.5

D

300 91.

Text Solution

Verified by Experts

The correct Answer is:
A
`P_1 V_1 = (w_1)/(30) RT_1 , (w_1 = 15)`
`P_2 V_2 = (w_2)/(M) RT_2 , (w_2 = 75)`
if `P_1 = P_2 , V_1 = V_2 , T_1 = T_2` then M = 150 also , VD = M/2
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