Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 14

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Weekly Quiz Competition

Question 1
4 / -1

To double the volume of a given mass at an ideal gas at 27^o C keeping the pressure constant one must raise the temperature in degree centigrade

A
54^o

B
600^o

C
327^o

D
270^o

Solution
Question 2
4 / -1

At on 0^o C pressure measured by barometer is 760 mm. what will be pressure at 100^o C

A
780 mm

B
760 mm

C
730 mm

D
None of these

Solution
Question 3
4 / -1

A gas at 27^o C has a volume V and pressure P. On heating its pressure is doubled and volume becomes three times. The resulting temperature of the gas will be

A
1527^o C

B
600^o C

C
162^o C

D
1800^o C

Solution
Question 4
4 / -1

A perfect gas at 27^o C is heated at constant pressure to 327^o C. If original volume of gas at 27^o C is V then volume at 327^o C is

A
2 V

B
V

C
V/2

D
3 V

Solution
Question 5
4 / -1

A vessel contains 1 mole of O₂ gas (molar mass 32) at a temperature T. The pressure of the gas is P. An identical vessel containing one mole of He gas (molar mass 4) at temperature 2T has a pressure of

A
2 P

B
P

C
8 P

D
P/8

Solution
Question 6
4 / -1

The pressure is exerted by the gas on the walls of the container because

A
It sticks with the walls

B
It is accelerated towards the walls

C
It loses kinetic energy

D
On collision with the walls there is a change in momentum

Solution
Question 7
4 / -1

The root mean square speed of hydrogen molecules of an ideal hydrogen kept in a gas chamber at 0^o C is 3180 ms^–1. The pressure on the hydrogen gas is (Density of hydrogen gas is 8.99 × 10^–2 kg/m³, 1 atm = 1.01 × 10⁵ Nm^–2

A
1.0 atm

B
3.0 atm

C
2.0 atm

D
1.5 atm

Solution
Question 8
4 / -1

A cylinder of capacity 20 litres is filled with H₂ gas. The total average kinetic energy of translatory motion of its molecules is 1.5 × 10⁵ J. The pressure of hydrogen in the cylinder is

A
4 × 10⁶ Nm^–2

B
3 × 10⁶ Nm^–2

C
5 × 10⁶ Nm^–2

D
2 × 10⁶ Nm^–2

Solution
Question 9
4 / -1

The average kinetic energy per molecule of a gas at –23^o C and 75 cm pressure is 5 × 10^–14 erg for H₂. The mean kinetic energy per molecule of the O₂ at 227^o C and 150 cm pressure will be

A

B

C

D

Solution
Question 10
4 / -1

The ratio of mean kinetic energy of hydrogen and nitrogen at temperature 300 K and 450 K respectively is

A
2:3

B
3:2

C
4:9

D
2:2

Solution