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The piston shown in the figure is moved ...

The piston shown in the figure is moved downwards such that the vapour volume is decreased by 246.3cc. How many grams of `H_(2)O` is condensed? (Assume aqueous tension at 27°C is 360 mm Hg).

A

1.8 gram

B

0.09 gram

C

0.9 gram

D

0.18 gram

Text Solution

Verified by Experts

The correct Answer is:
B
`PV = (WRT)/M`
`W = (0.5 xx 0.2463 xx 18)/(0.0821 xx 300) = 0.09 gm`.
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