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On increasing temperature , surface tens...

On increasing temperature , surface tension of water

A

Increases

B

Decreases

C

Remains constant

D

Show irregular behaviour

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MOCK TEST 9-Example
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  2. Equal molecules of N2 and O2 are kept in a closed container at pressur...

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  3. One mole of nitrogen gas at 0.8 atm takes 38 second of diffuse through...

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  4. Which of the following pairs of gases will have identical rate of effu...

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  5. A sample of nitrogen occupies a volume of 350 cm^3 at STP. Then, its v...

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  6. A 10 L flask contains 0.2 mole of CH4 and 0.3 mole of hydrogen at 25^@...

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  7. The ratio of most probable velocity, average velocity and root mran sq...

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  8. Helium atom is two times heavier than hydrogen molecule. At 25^@ C, th...

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  9. Real gases will approach the behaviour of ideal gases at

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  10. Four particles have speed 2,3,4 and 5 cm/s respectively. Their rms spe...

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  11. List the main postulates of the kinetic molecular theory of matter.

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  12. The values of van der Waals' constant 'a' for O2, N2, NH3 " and " CH4 ...

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  13. The density of vapours of a substance of molar mass 18 g at 1 atm pres...

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  14. The rate constant for a first order reaction is 60s^(-1). How much tim...

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  15. The temperature at which the root mean square speed of SO2molecule is ...

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  16. The van der Waal's gas constant, a is given by

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  17. In van der Waals' equation of state, the constant 'b' is a measure of

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  18. On increasing temperature , surface tension of water

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  19. At relatively high pressure, van der Waal's equation for one mole of g...

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  20. Which of the following is equal to 1 kgm^(-1) s^(-1)?

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