Kinetic Theory of Gases-Kinetic Energy and Temperature [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 17 - 21 of 78

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Question 17

Question MCQ▾

In the two vessels of same volume, atomic hydrogen and helium at pressure 1 atm and 2 atm are filled. If temperature of both the samples is same, then average speed of hydrogen atoms < CH > will be related to that of helium < CHe > as,

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 18

Question MCQ▾

For a gas at a temperature T the root-mean-square velocity Vr. m. s , the most probable speed Vmp , and the average speed Vav obey the relationship

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 19

Question MCQ▾

The kinetic energy of one gram molecule of a gas at 700 C temperature and normal pressure is (R = 8.31 J/mole- K)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 20

Question MCQ▾

If pressure of a gas contained in a closed vessel is increased 0.2% when heated by 1°C, the initial temperature must be

Choices

Choice (4)Response

a.

250 K

b.

25°C

c.

500 K

d.

Question does not provide sufficient data or is vague

Edit

Question 21

Question Assertion-Reason▾

Assertion(Ꭺ)

Equal masses of helium and oxygen gases are given equal quantities of heat. There will be a greater rise in the temperature of helium compared to that of oxygen.

Reason(Ꭱ)

The molecular weight of oxygen is more than the molecular weight of helium.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Edit