Assertion: gases are characterised with two coefficients of expansion
Reason: when heated both volume and pressure increase with the rise in temperature
A
Both assertion (A) and reason (R) are correct and R gives the correct explanation
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B
Both assertion (A) and reason (R) are correct but R doesnt give the correct explanation
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C
A is true but R is false
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D
A is false but R is true
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Solution
The correct option is ABoth assertion (A) and reason (R) are correct and R gives the correct explanation The ideal gas equation PV=ηRT tells us that the pressure and volume are directly proportional to the temperature. The coefficients of expansion for pressure is γp and that of volume is αv.