Thermodynamics Test

Result

Thermodynamics Test - 23

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Weekly Quiz Competition

Question 1
4 / -1

A gas expands from 1 litre to 3 litre at atmospheric pressure. The work done by the gas is about

A
200 J

B
2 J

C
300 J

D
2 × 10⁵ J
Question 2
4 / -1

If the ratio of specific heat of a gas at Constant pressure to that at constant volume is γ, the Change in internal energy of the mass of gas, when the volume changes from V to 2V at Constant Pressure p, is

A

B

C
PV

D

Solution
Question 3
4 / -1

The change in internal energy, when a gas is cooled from 927^oC³ to 27^oC

A
200%

B
100%

C
300%

D
400%

Solution
Question 4
4 / -1

For hydrogen gas C_p ‒ C_v = a and for oxygen gas C_p ‒ C_v = b, The relation between a and b is given by

A
a = 4b

B
a = b

C
a = 16b

D
a = 8b
Question 5
4 / -1

If for a gas cp/cv = 1.67, this gas is made up to molecules which are

A
diatomic

B
Polytomic

C
monoatomic

D
mixnese of diatomic and polytomic molecules

Solution
Question 6
4 / -1

One mole of a monoatomic ideal gas is mixed with one mole of a diatomic ideal gas .The molas specific heat of the micture at constant volume is ..........

A
4R

B
3R

C
R

D
2R

Solution
Question 7
4 / -1

One mole of a monoatomic gas is heate at a constant pressure of 1 atmosphere from 0k to 100 k. If the gas constant R = 8.32 J/mol k the change in internal energy of the gas is approximate ?

A
23 J

B
1.25 × 10³J

C
8.67 × 10³J

D
46 J
Question 8
4 / -1

A gas mixture consists of 2 mde of oxygen and 4 mole of argon at tempressure T.Neglecting all vibrational modes, the total internal energy of the system is

A
11 RT

B
9 RT

C
15 RT

D
4 RT

Solution
Question 9
4 / -1

When an ideal diatomic gas is heated at constant pressure, the Section of the heat energy supplied which increases the infernal energy of the gas is..

A
3/7

B
3/5

C
2/5

D
5/7

Solution
Question 10
4 / -1

An insulated containes containing monoatomic gas of molas mass Mo is moving with a velocity, V.If the container is suddenly stopped, find the change in temperature.

A

B

C

D