NEET UG Physics Kinetic Theory of Gases MCQs

NEET UG Physics Kinetic Theory of Gases MCQs with answers available in Pdf for free download. The MCQ Questions for NEET Physics with answers have been prepared as per the latest NEET Physics syllabus, books and examination pattern. Multiple Choice Questions form important part of competitive exams and NEET exam and if practiced properly can help you to get higher rank. Refer to more topic wise NEET Physics Questions and also download more latest study material for all subjects and do free NEET Physics Mock Test

Kinetic Theory of Gases NEET Physics MCQ

NEET Physics students should refer to the following multiple-choice questions with answers for Kinetic Theory of Gases in NEET. These MCQ questions with answers for NEET Physics will come in exams and help you to score good marks

Kinetic Theory of Gases MCQ Questions with Answers

NEET UG Physics Kinetic Theory of Gases MCQs

NEET UG Physics Kinetic Theory of Gases MCQs

NEET UG Physics Kinetic Theory of Gases MCQs

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* Assumption of Ideal gases (or kinetic theory of gases)
Kinetic theory of gases relates the macroscopic properties of gases (such as pressure, temperature etc.) to the microscopic properties of the gas molecules (such as momentum, speed, kinetic enengy of molecule etc.)
 
Assumptions:
1. Gas is made up of tiny particles, These particles are called molecules of the gas.
2. The molecules of a gas are identical, spherical, rigid and perfectly elastic point masses.
3. The molecules of a gas perform incessant random motion.
4. The molecules of a gas follow Newton's laws of motion.
5. The number of molecules in a gas is very large.
6. The volume of molecules is negligible in comparision with the volume of gas.
7. Inter molecular forces act only when two molecules come close to each other or collide.
8. The time spent in a collision between two moleules is negligible in comparision to time between two successive collisions. The collisions between the molecules and between a molecule and the wall of a container are elastic.
 
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11. 02 gas is filled in a vessel. If pressure is doubled, temperature becomes four times, how many times its density will become.
(A) 4 (B) 1/ 4 (C) 2 (D)  1/2
 
12. At a given volume and temperature the pressure of a gas
(A) Varies inversely as the square of its mass (B) Varies inversely as its mass
(C) is independent of its mass (D) Varies linearly as its mass
 
13. If pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1°C the initial temperature must be.
(A) 250° C (B) 25° C (C) 250 K (D) 2500 K
 
14. To decrease the volume of a gas by 5% at constant temperature the pressure should be
(A) Incseased by 5.26% (B) Decreased by 5.26%
(C) Decreased by 11% (D) Increased by 11%
 
15. A gas at the temperature 250 K is contained in a closed vessel. If the gas is heated through 1 K, then the percentage increase in its pressurse will be
(A) 0.4% (B) 0.1 % (C) 0.8% (D) 0.2%
 
16. The product of the pressure and volume of an ideal gas is
(A) A constant
(B) Directly proportional to its temperature.
(C) Inversely proportional to its temperature.
(D) Approx. equal to the universal gas constant.
 
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48. The ratio of mean kinetic energy of hydrogen and oxygen at a given temperature is
(A) 1:8 (B) 1:4 (C) 1:16 (D) 1:1
 
49. The ratio of mean kinetic energy of hydrogen and nitrogen at temperature 300 K and 450 K respectively is
(A) 2:3 (B) 3:2 (C) 4:9 (D) 2:2
 
50. Pressure of an ideal gas is increased by keeping temperature constant what is the effect on kinetic energy of molecules.
(A) Decrease (B) Increase
(C) No change (D) Can`t be determined
 
51. A sealed container with negligible co-efficient of volumetric expansion contains helium (a monoatomic gas) when it is heated from 200 K to 600 K, the averagy K.E. of helium atom is
(A) Halved (B) Doubled (C) Unchanged (D) Increased by factor √2
 
52. The mean kinetic energy of a gas at 300 K is 100J. mean energy of the gas at 450 K is equal to
(A) 100 J (B) 150 J (C) 3000 J (D) 450 J
 
53. At what temperature is the kinetic energy of a gas molecule double that of its value at 27°C
(A) 540 C (B) 1080 C (C) 3270 C (D) 3000 C
 
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