# Thermodynamics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 6 - 10 of 86

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## Question number: 6

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

### Question

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 150 J, then increase in internal energy is

### Choices

Choice (4) Response

a.

2408 J

b.

1904 J

c.

2072 J

d.

2090 J

## Question number: 7

» Thermodynamics » Concept of Temperature

MCQ▾

### Question

How much work to be done in decreasing the volume of an ideal gas by an amount of 2.4 × 10 -4 m 3 at normal temperature and constant normal pressure of 1 × 10 -5N/ m 2

### Choices

Choice (4) Response

a.

24 Joule

b.

25 Joule

c.

28 Joule

d.

27 Joule

## Question number: 8

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

### Question

The pressure in the tyre of a car is four times the atmospheric pressure at 300 K. If this tyre suddenly bursts, its new temperature will be (γ = 1.4)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 9

» Thermodynamics » Concept of Temperature

MCQ▾

### Question

When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas, is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 10

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

### Question

During the melting of a slab of ice at 273 K and one atmospheric pressure

(1) Positive work is done on the ice-water system by the atmosphere

(2) Positive work is done by ice-water system on the atmosphere

(3) The internal energy of the ice-water system increases

(4) The internal energy of the ice-water system decreases

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 2 ate correct

d.

1 and 3 are correct