Thermodynamics (NEET Physics): Questions 49 - 53 of 84

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Question number: 49

» Thermodynamics » Concept of Temperature

MCQ▾

Question

One mole of an ideal gas at an initial temperature of TK does 8 R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 53 , the final temperature of gas will be

Choices

Choice (4) Response

a.

(TA)K

b.

(T2A)K

c.

(T+5.33)K

d.

(T+A)K

Question number: 50

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

A gas mixture consists of 2 moles of oxygen and 4 moles argon at temperature T neglecting all vibrational modes, the total internal energy of the system is

Choices

Choice (4) Response

a.

15 RT

b.

9 RT

c.

11 RT

d.

4 RT

Question number: 51

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

A system is given 500 calories of heat and it does 600 joules of work. The internal energy of the system change in this process is (J = 4.18 Joule/cal)

Choices

Choice (4) Response

a.

-300 Joule

b.

- 528.2 Joule

c.

418 Joule

d.

654 Joule

Question number: 52

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

A monatomic gas (y=92) is suddenly compressed to of its original volume adiabatically, than the pressure of the gas will change to,

Choices

Choice (4) Response

a.

245

b.

403

c.

8

d.

5 times its initial pressure

Question number: 53

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

A system is given 300 calories of heat and it does 600 joules of work. The internal energy of the system change in this process is (j = 4.18 Joule/cal)

Choices

Choice (4) Response

a.

156.5 Joule

b.

- 528.2 Joule

c.

654 Joule

d.

-300 Joule

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