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The lubricating action of an oil is more...

The lubricating action of an oil is more if it possess:

A

high vapour pressure

B

low power pressure

C

high surface tension

D

high destiny

Text Solution

Verified by Experts

The correct Answer is:
B
Substances of high vapour pressure (e.b., gasoline) evaporates more quickly than substances of low vapour pressure (e.g.,moter oil).
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A2Z-SOLUTIONS-Raoult'S Law, Ideal And Non-Ideal Solutions, Azeotropes
  1. The vapour pressure of two liquid P and Q are 80 torr and 60 torr resp...

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  2. Consider a binary mixture of volatile liquides. If at X(A)=0.4, the va...

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  3. The lubricating action of an oil is more if it possess:

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  4. Which of the following plots does not represent the behaviour of an id...

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  5. Which of the following is correct for a solution showing positive devi...

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  6. If liquids A and B from an ideal solution

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  7. Water and ethanol from non-ideal solution with positive deviation Raou...

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  8. Mole fraction of toluene in the vapour which is in equilibrium with a ...

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  9. For an ideal binary liquid solution with P(A)^@gtP(B)^@" "x(A)and y(A)...

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  10. Total Vapour pressure of mixture of 1molA(p(A)^(0)=150 "torr")and 2mol...

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  11. Which of the following is less than zero for ideal solutions ?

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  12. If Vapour pressure of pure liquids 'A' & 'B' are 300 and 800 torr res...

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  13. Which of the following shows negative deviation from Raoult's law?

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  14. A maximum or minima obtained in the temperature, composition curve of ...

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  15. A liquid is kept in a closed vessel. If a glass plate (negligible mass...

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  16. Given at 350K, p(A)^@=300 "torr" and p(B)^@=800 "torr" the composition...

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  17. The vapour pressure of the solution of two liquids A(P^@=80mm) and B(P...

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  18. In mixture A and B ,components show -ve deviations as:

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  19. If liquids A and B from an ideal solution, than :

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  20. Which liquids pair shows a positive deviation from Raoult's law?

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