# XI_PHYSICS_HEAT AND THERMODYNAMICS_7 Online Test

The _______ of a gas is numerically equal to two-thirds of mean kinetic energy of translation of a unit volume of the molecules.
Temperature
Pressure
Volume
Density
What will be the resultant temperature of a mixture of 400 g of copper chips at 500oC with 500 g of melting ice?
92oC
0oC
110oC
250oC
At what temperature will oxygen molecules have the same root mean square velocity as that of hydrogen molecules at-100oC?
2495oC
2595oC
2693oC
2791oC
What is the dew point when the relative humidity of air at 20oC is 52% (Given the S.V.P. of water at 20oC, 10oC and 9oC are 17.5,9.2,8.6 mm of Hg respectively)
9.83oC
9.72oC
9.60oC
9.57oC
If the temperature of air is 16.5oC and dew point is 6.5oC, find the % relative humidity of air (S.V.P. at 6oC, 7oC, 16oC, and 17oC are 7.05, 7.51, 13.62 and 14.42 mm respectively).
41.9%
61.9%
71.9%
51.9%
Radiation energy is comparable to a rippling stream of water, according to the
Wave theory
Quantum theory
Kinetic theory
None of the above
A thermodynamic system is one which can be described in term of
Temperature
Volume
Entropy
Thermodynamic co-ordinates
In a stretched wire, to find the Young’s modulus, the thermodynamic co-ordinates include
The stretching force F
The length of the stretching wire
The temperature of the wire
All of the above
Which of the following thermodynamic co-ordinates describes a reversible cell?
The E.M.F. of the cell
The charge that flows
The temperature
All of the above
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This test is very helpful for AIEEE and IIT JEE exam preparation.

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