Question

A sample of gas occupies a volume of 86.8ml at a pressure of 730 mm of Hg and a
temperature of 27°C. What will be its volume at standard pressure and a temp of 27°C ?

Answer 1

Solution:

Standard Pressure = 760 mm hg

V1 = 86.8 ml P1 = 730 mm
V2 = ? ml P2 = 760 mm

Pressure is increased from 730 to 760 mm, thevolume is hence decreased, and the original volume must be multiplied by a fraction less than 1.


V2 = 86.8 x 730/760 = 83.4 ml

Hence, The Required answer is 83.4 ml.

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Answer 2

Answer:

The Required answer is 83.4 ml.

Explanation:

Standard Pressure = 760 mm hg

V1 = 86.8 ml , P1 = 730 mm

V2 = ? ml , P2 = 760 mm

Pressure is increased from 730 to 760 mm, the volume is hence decreased,(Because according to Boyle's Law volume is inversely proportional to pressure) ...

The expression to it is below....

$v \: \alpha \: \frac{1}{p}$

and the original volume must be multiplied by a fraction less than 1.

V2 = 86.8 x 730/760 = 83.4 ml

Hence, The Required answer is 83.4 ml.

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