# Thermodynamics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 51 - 56 of 86

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## 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 is suddenly compressed to of its original volume adiabatically, than the pressure of the gas will change to,

### Choices

Choice (4) Response

a.

b.

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

## Question number: 54

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

### Question

110 J of heat is added to a gaseous system, whose internal energy change is 40 J, then the amount of external work done is

### Choices

Choice (4) Response

a.

70 J

b.

40 J

c.

150 J

d.

110 J

## Question number: 55

» Thermodynamics » Concept of Temperature

MCQ▾

### Question

The efficiency of Carnot’s engine operating between reservoirs, maintained at temperatures 27 degree Celsius and -113 degree Celsius

### Choices

Choice (4) Response

a.

0.4%

b.

50%

c.

0.75%

d.

46%

## Question number: 56

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

### Question

The first law of thermodynamics is concerned with the conservation of

### Choices

Choice (4) Response

a.

Mass

b.

Energy

c.

Temperature

d.

Momentum