Questions
A vertical cylinder closed at both ends is fitted with a smooth piston dividing the volume into two parts each containing one mole of air. At the equilibrium temperature of 320 K, the upper and lower parts are in the ratio 4 : 1. The ratio will become 3 : 1 at a temperature of
detailed solution
Correct option is A
p2-p1A=mgor mgA=RTiV1-RTi4V1=3RTi4V1 …(i)Similarly, in second case, mgA=RTfV2-RTf3V2=2RTf3V2 …(ii)Further, 5V1 = 4V2Equating Eqs. (i) and (ii), we get 3Ti4V1=2Tf3V2⇒ Tf=98×V2V1×Ti = 98 × 54 × 320 = 450 KTalk to our academic expert!
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For one-mole ideal gas, a process follows the relation where P0 and V0 are constants. If the volume the gas changes from V0 to 2V0. What is the change in temperature?
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