# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1575 - 1579 of 2320

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## Question number: 1575

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

In isothermal process whole heat energy supplied to the body is converted into inter energy.

### Reason (Ꭱ)

According to the first law of thermodynamics,

### Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

## Question number: 1576

Edit
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.

H 2

c.

O 2

d.

F 2

## Question number: 1577

Edit
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

### Choices

Choice (4)Response

a.

60 KJ

b.

30 kJ

c.

20 kJ

d.

40 kJ

## Question number: 1578

Edit
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.

560 K

b.

380K

c.

840K

d.

280 K

## Question number: 1579

Edit
MCQ▾

### Question

Two mole of ideal monoatomic gas is mixed with two mole of diatomic gas . What is γ for

### Choices

Choice (4)Response

a.

2

b.

c.

d.

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