Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 60

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Weekly Quiz Competition

Question 1
4 / -1

A diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy

A
3/5

B
3/7

C
5/7

D
5/9

Solution
Question 2
4 / -1

The kinetic energy of translation of 20 g of oxygen at 47°C is (molecular wt. of oxygen is 32 g/mol and R = 8.3 J/mol/K)

A
2490 joules

B
2490 ergs

C
830 joules

D
124.5 joules

Solution
Question 3
4 / -1

The translatory kinetic energy of gas per g is

A

B

C

D

Solution
Question 4
4 / -1

The kinetic energy of one gram molecules of a gas at normal temperature and pressure is (R = 8.31 J/mol-K)

A
0.56 × 10⁴ J

B
1.3 × 10² J

C
2.7 × 10² J

D
3.4 × 10³ J

Solution
Question 5
4 / -1

The mean kinetic energy of a gas at 300 K is 100 J. The mean energy of the gas at 450 K is equal to

A
100 J

B
3000 J

C
450 J

D
150 J

Solution
Question 6
4 / -1

At what temperature is the kinetic energy of a gas molecule double that of its value of 27°C

A
54°C

B
300 K

C
327°C

D
108°C

Solution
Question 7
4 / -1

Read the given statements and decide which is/are correct on the basis of kinetic theory of gases
(I) Energy of one molecule at absolute temperature is zero
(II) r.m.s. speeds of different gases are same at same temperature
(III)For one gram of all ideal gas kinetic energy is same at same temperature
(IV)For one mole of all ideal gases mean kinetic energy is same at same temperature

A
All are correct

B
I and IV are correct

C
IV is correct

D
None of these

Solution
Question 8
4 / -1

The translational kinetic energy of gas molecule for one mole of the gas is equal to

A
3/2RT

B
2/3RT

C
1/2RT

D
2/3KT

Solution
Question 9
4 / -1

The average kinetic energy of a gas molecule at 27°C is 6.21 × 10^–21J. Its average kinetic energy at 227°C will be

A
52.2 × 10^–21 J

B
5.22 × 10^–21 J

C
10.35 × 10^–21 J

D
11.35 × 10^–21 J

Solution
Question 10
4 / -1

The average translational kinetic energy of O₂ (molar mass 32) molecules at a particular temperature is 0.048 eV. the translational kinetic energy of N₂ (molar mass 28) molecules in eV at the same temperature is

A
0.0015

B
0.003

C
0.048

D
0.768

Solution