Thermodynamics [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 5 of 240

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Question 1

Question MCQ▾

In the following P-V diagram two adiabatic cut two isothermals at temperatures T1 and T2 (figure) . The value of will be

The P-V Diagram and Rectangle Abcd Formed

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 2

Question MCQ▾

A given system undergoes a change in which the work done by the system equals the decrease In its internal energy. The system must have undergone an

Choices

Choice (4)Response

a.

Isobaric change

b.

Adiabatic change

c.

Isothermal change

d.

Isochoric change

Edit

Question 3

Question MCQ▾

The latent heat of vaporization of water is 2240 J/gm. If the work done in the process of expansion of 1 g of water is 168 J, then increase in internal energy is

Choices

Choice (4)Response

a.

2072 J

b.

2408 J

c.

2240 J

d.

1904 J

Edit

Question 4

Question MCQ▾

When an ideal gas in a cylinder was compressed isothermally by a piston, the work done on the gas was found to be 1.5 × 104 Joule. During this process about

Choices

Choice (4)Response

a.

3.6 × 103 cal of heat flowed out from the gas

b.

1.5 × 104 cal of heat flowed out from the gas

c.

3.6 × 103 cal of heat flowed into the gas

d.

1.5 × 104 cal of heat flowed into the gas

Edit

Question 5

Question MCQ▾

When an ideal gas in a cylinder was compressed isothermally by a piston, the work done on the gas was found to be 2.0 × 104 Joule. During this process about

Choices

Choice (4)Response

a.

2.0 × 103 cal of heat flowed out from the gas

b.

4.7 × 103 cal of heat flowed into the gas

c.

4.7 × 103 cal of heat flowed out from the gas

d.

2.0 × 103 cal of heat flowed into the gas

Edit