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Kinetic Theory of Gases MCQs for NEET — Physics Questions with Answers

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At constant temperature $ 27 ^\circ C $ and pressure, 5 litre gas is raised its temperature by $1 ^\circ C$, What will be the change in its volume ?

A. $ { 1 \over 234 } ^ {th} $ part of its original volume will be increased. B. The volume at 300K acquired by a gas will be increased of its$ { 1 \over 234 } ^ {th} $ part C. The volume of a gas acquired at O L kmp; will be increased of its$ { 1 \over 234 } ^ {th} $ D. $ { 1 \over 234 } ^ {th} $ part of volume of a gas at $ O ^\circ C$ , will be increased.

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At 400 K temperature , pressure of 200 ml $N_2$ gas is 1.5 bar, What is its volume at STP?

A. 204.7 ml B. 20.47 ml C. 402.7 ml D. 40.27 ml

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14.2 kg LPG is diffused in a gas cyllinder at 2.5 atm. If 50% lf LPG gas is used up then what will be the pressure of gas will remain in cyllinder ?

A. 2.5 atm B. 1.25 atm C. 5.0 atm D. $ { 14.2 \times 2.5 \over 7.1 \times V } $

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When the unit of $ R = 8.314 \times 10 ^ 7 erg. mole^{-1} k ^ {-1} $ . What are the units of pressure and volume of a gas ?

A. $ P - dyne cm^{-2}, V-cm ^ 3 $ B. $ P - paxal, V-cm^3 $ C. $ P - newton m^{-2}, V-cm^3 $ D. $ P - atm, V-cm^3 $

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unit of R in CGS system is

A. $ 8.314 \times 10 ^7 erg K ^ {-1} mole ^ {-1} $ B. $ 8.314 JK ^ {-1 } mole ^ {-1} $ C. $ 0.082litre atm mole ^ {-1} K ^ {-1} $ D. $ 1.987 cal mole ^ {-1} K ^ {-1} $

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What is not rateted to Z ?

A. z=1 states the ideal behaviour of the gas B. Gases which has z =1 are an ideal gases C. z is the ratio of $ PV \over nRT } $ known as compressibility factor D. When z < 1 of z > 1, the gases convert into their liqud state

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Which equation is the ideal gas equation for the real gases ?

A. PV = nRT B. PV = iRT C. $ ( P = { am^2 \over v ^ 2 } ) ( V - nb) = CRT $ D. $ ( P = { am^2 \over v ^ 2 } ) ( V - nb) = nRT $

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Observation on physical state of water at 273K up to 373K are given as below, find the Correct option.

A. changing the temperature of water above 273K upto 373K, composition of water is changing gradnally B. When temp is changed to rise from 273K on ward the physical state of water changes fom solid - liquid to vapour state C. Heating water at 373K temperture, propotion of hydrogen with oxygen is changed D. Molar mass of water decreases with changingits physicalstates solid - liquid gaseous an raising the temperature

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Which of the following statements is false

A. Matter is made of small particles always exist in solid state B. matter of the same substance in liquid state has more volume compared to its solid state C. matter is solid state possess fixed volume with definite shape D. Beyond solid, liquid and gaseous state, two other physical states are also known as plasma and Bose Einistein condensate

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The density of neon will be maximum at (IIT 1990)

A. NTP B. $ 0 ^\circ C , 2 atm $ C. $ 273 ^\circ C , 1 atm $ D. $ 273 ^\circ C , 2 atm $

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