NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1494 - 1496 of 2142

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Question number: 1494

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

From the following statements, concerning ideal gas at any given temperature T, select the correct one (s)

(1) The coefficient of volume expansion at constant pressure is same for all ideal gases

(2) In a gaseous mixture, the average translational kinetic energy of the molecules of each component is same

(3) The mean free path of molecules increases with the decrease in pressure

(4) The average translational kinetic energy per molecule of oxygen gas is 3KT (K being Boltzmann constant)

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 1495

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

If pressure of a gas contained in a closed vessel is increased 0.4 % when heated by 1°C, the initial temperature must be

Choices

Choice (4) Response

a.

250°C

b.

2500 K

c.

25°C

d.

250 K

Question number: 1496

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

Let respectively denote the mean speed, root mean square speed and most probable speed of the molecules in an ideal monoatomic gas at absolute temperature T, the mass of a molecule is m. Then

(1)

(2) The average kinetic energy of a molecule is .

(3) No molecule can have speed greater than

(4) No molecule can have speed less than

select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1 and 2 are correct

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