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Standard enthalpy of formation is zero f...

Standard enthalpy of formation is zero for

A

Diamond

B

`O_3(g)`

C

`Br^-(aq)`

D

`Cl_2(g)`

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AAKASH INSTITUTE-TEST 3-EXERCISE
  1. A liquid is in equilibrium with its vapour at a certain temperature. I...

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  2. The work done by one mole of ideal gas when its temperature is increas...

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  3. Standard enthalpy of formation is zero for

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

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  5. Compressibility factor under critical state of a gas is

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

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  7. A gaseous mixture contains 220 gm of carbon dioxide and 280 gm of nitr...

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

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

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  10. Select the state functions among the following. (i) U+ PV (ii) S (ii...

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

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  12. The ratio of average speed, most probable speed and root mean square s...

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  13. If the energy absorbed by each X, molecule of a gas is 3.5 xx 10^(-19)...

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  14. Ratio of average kinetic energy of 14 g of N2 at 27°C to 24 g of O2 at...

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  15. In vander Waals gas equation, the term that accounts for the volume oc...

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  16. The root mean square speed at NTP for the gases CH2, H2 ,He and F2 are...

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  17. At 127°C. heat of fusion of a compound is 4.8 kJ/mol. Entropy change f...

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

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  19. The enthalpy and entropy change for the reaction, Br2(l) + Cl2(g) - 2B...

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  20. Heat of combustion of carbon monoxide is -283.5 kJ/mole. The heat rele...

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