Thermodynamics Test

Result

Thermodynamics Test - 26

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Weekly Quiz Competition

Question 1
4 / -1

The letent heat of Vaporisation of water is 2240 J/g. If the work done in the Process of expansion of 1g is 168J. then increase in internal energy is .......... J

A
2072

B
2408

C
2240

D
1904
Question 2
4 / -1

The Volume of an ideal gas is 1 liter column and its Pressure is equal to 72 cm of Hg. The Volume of gas is made 900 cm³ by compressing it isothermally. The stress of the gas will be ............. Hg column.

A
4 cm

B
6 cm

C
7 cm

D
8 cm
Question 3
4 / -1

In adiabatic expansion

A
∆u = 0

B
∆u = Positive

C
∆u = Negative

D
∆u = 0
Question 4
4 / -1

1 mm³ Of a gas is compressed at 1 atmospheric pressure and temperature 27^o C to 627^o C. What is the final pressure under adiabatic condition. r = 1.5

A

B

C

D

Solution
Question 5
4 / -1

A
8

B
32

C

D

Solution
Question 6
4 / -1

A
225 K

B
450 K

C
375 K

D
405 K

Solution
Question 7
4 / -1

A diatomic gas intially at 18^o C is temperature after Compression will be is Compressed adiabatically to one eight of its original volume. The

A
10^o C

B
668K

C
887^o C

D
144^o C

Solution
Question 8
4 / -1

A gas expands 0.25m³ at Constant Pressure 10³ N/m² the work done is

A
250 J

B
2.5 erg

C
250 W

D
250 N
Question 9
4 / -1

The Volume of air increases by 5% in an adiabatic expansion. The percentange lecrease in its Pressure will br.

A
5%

B
6%

C
7%

D
8%

Solution
Question 10
4 / -1

In the following indicatos diagram, the net amount of work done will be

A
Negative

B
zero

C
Positive

D
Infinity

Solution