JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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By what percentage should the pressure of a given mass of a gas be increased so as to decrease its volume by

20 \%

at constant temperature?

View answer and explanation

Correct option: B

25 \%

Option B (

25 \\%

) is correct because using Boyle's law, the pressure must increase by 25% to decrease the volume by 20% at constant temperature.

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n = \frac{{PV}}{{RT}},n =

{25^0}

{0^0}C

E\,\,W{m^{ - 2}}

\left( {\frac{T}{2}} \right)K