Thermodynamics Test

Result

Thermodynamics Test - 25

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Weekly Quiz Competition

Question 1
4 / -1

In thesmodynamics, the work done by the system is considered ......... and the work done on the system is Considered ...........

A
Positive, zero

B
negative, Positive

C
zero, negative

D
Positive, negative
Question 2
4 / -1

A thermodynamic system goes from States
(i) P,V to 2P, V (ii) P,V to P, 2V. Then what is work done in the two Cases.

A
Zero, PV

B
Zero, Zero

C
PV, Zero

D
PV,PV

Solution
Question 3
4 / -1

For free expansion of the gas which of the following is true ?

A
Q = 0, W > 0 and µEint = -W

B
W = 0, Q > 0 and ∆ Eint = Q

C
W > 0, Q < 0 and ∆Eint = 0

D
Q = W = 0 and ∆ Eint = 0
Question 4
4 / -1

An ideal gas is taken through cyclic process as shown in the figure. The net work done by the gas is

A
PV

B
2 PV

C
3 PV

D
zero

Solution
Question 5
4 / -1

μ moles of gas expands from volume V₁ to V₂ at constant temperture T.The work done by the gas is

A

B

C

D
Question 6
4 / -1

In anisothermal reversible expansion, if the volume of 96J of oxygen at 27^oC is increased from 70 liter to 140 liter, then the work done by the gas will be

A
300 R log_e⁽²⁾

B
81 R log_e⁽²⁾

C
200 R log_e⁽²⁾

D
100 R log_e⁽²⁾

Solution
Question 7
4 / -1

The isothermal Bulk modulus of an ideal gas at pressure P is

A
vP

B
P

C
P/2

D
P/v
Question 8
4 / -1

An adiabatic Bulk modulus of an ideal gas at Pressure P is

A
γP

B
P/γ

C
P

D
P/2
Question 9
4 / -1

The Specific heat of a gas in an isothermal Process is

A
zero

B
Negative

C
Infinite

D
Remairs

Solution
Question 10
4 / -1

A
0.0182

B
‒ 0.0091

C
‒ 0.0182

D
0.0091