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Ratio of the rate of effusion of oxygen ...

Ratio of the rate of effusion of oxygen gas at 1.5 atm to that of helium gas at 4.5 atm will be

A

`1:6sqrt2`

B

`1:12sqrt2`

C

`1:2sqrt2`

D

`1:3`

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AAKASH INSTITUTE ENGLISH-TEST 3-EXERCISE
  1. The work done by one mole of ideal gas when its teperature is increase...

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  2. Standard enthalpy of formation is zero for

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  3. Ratio of the rate of effusion of oxygen gas at 1.5 atm to that of heli...

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  4. Compressibility factor under critical state of a gas is

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  5. An air bubble formed under water at temperature 17^oC and the pressure...

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  6. A gaseous mixture contains 220 g of carbon dioxide and 280 g of nitrog...

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  7. If the enthalpies of formation of C3H8(g), CO2(g) and H2O(l) at standa...

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  8. When 5 moles of an ideal gas is expended at 350 K reversibly from 5 L ...

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  9. When 1.5 mol of a gas is heated at constant volume from 300 K to 350 K...

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  10. For which of the following reactions, deltaH = deltaU?

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  11. Select the state functions among the following. (i) U + PV (i...

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  12. The bond energies of H - H and I - I bonds are 435 kJ mol^-1 and 150 k...

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  13. The ratio of everage speed, most probable speed and root mean square s...

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  14. If the energy absorbed by each X2 molecule of a gas is 3.5xx10^-19 J a...

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  15. Ratio of everage kinetic energy of 14 g of N2 at 27^oC to 24 g of O2 a...

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  16. In vander waals gas equation, the term that accounts for the volume oc...

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  17. The root mean square speed at NTP for the gases CH4,H2,He and F2 are i...

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  18. At 127^oC, heat of fusion of a compound is 4.8kJ/mol. Entropy change f...

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  19. A gas expands in an insulated container against a constant external pr...

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  20. The enthalpy and entropy change for the reaction, Br2(I) + CI2(g) righ...

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