NEET Physics: Questions 1576 - 1580 of 2099

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Question number: 1576

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

At room temperature, the r. m. s. speed of the molecules of certain diatomic gas is found to be 1930 m/s. The gas is

Choices

Choice (4) Response
a.

Cl 2

b.

O 2

c.

F 2

d.

H 2

Question number: 1577

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Six moles of an ideal gas performs a cycle shown in figure. If the temperature T A = 600K, T B = 800 K, T C = 2200K and T D = 1200. K, the work done per

System of ideal gas Temperature at A, B, C and D

System of Ideal Gas Temperature at a, B, C and D

In above figure we show six moles of an ideal gas performs a cycle.

Choices

Choice (4) Response
a.

60 KJ

b.

40 kJ

c.

20 kJ

d.

30 kJ

Question number: 1578

» Thermodynamics » Concept of Temperature

MCQ▾

Question

A Carnot engine whose low temperature reservoir is at 17 C has an efficiency of 50%. It is desired to increase the efficiency to 70%. By how. many degrees should the temperature of the high temperature reservoir be increased

Choices

Choice (4) Response
a.

280 K

b.

560 K

c.

840K

d.

380K

Question number: 1579

» Kinetic Theory of Gases » Equation of State of a Perfect Gas

MCQ▾

Question

Two mole of ideal monoatomic gas (γ=73) is mixed with two mole of diatomic gas (γ=95) . What is γ for (γ=CpCv)

Choices

Choice (4) Response
a.

2315

b.

43

c.

2

d.

32

Question number: 1580

» Atoms and Nuclei » Mass Defect

MCQ▾

Question

If the mass defect in the formation of helium from hydrogen is 0.5%, then the energy obtained, in kWh, in forming helium from 1 kg of hydrogen will be,

Choices

Choice (4) Response
a.

1.25

b.

125 ⨯ 10 4

c.

1.25 ⨯ 10 8

d.

1.25 ⨯ 10 6

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