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Assertion : Adiabatic expansion of a ga...

Assertion : Adiabatic expansion of a gas decreases its internal energy.
Reason : Expansion work is done by the gas using its own internal energy. : If both assertion and reason are true and reason is the correct explanation of assertion, If both assertion and reason are true and reason is not the correct explanation of assertion, If assertion is true, but reason is false, If both assertion and reason are false

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true and reason is not the correct explanation of assertion

C

If assertion is true, but reason is false

D

If both assertion and reason are false

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BRILLIANT PUBLICATION-THERMODYNAMICS AND CHEMICAL ENERGETICS - (LEVEL-II (HOMEWORK)
  1. Enthalpy of vaporisation of benzene is 30.8 kJ mol" at its normal boil...

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  2. C C l(4 (f)) boils at 350 K at 1 atm. pressure absorbing 30 kJ mol^(-...

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  3. Consider the reaction 4NO(2(g)) + O (2 (g)) to 2 N (2 ) O (5(g)) , D...

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  4. 0.8 mole He and 0.2 mole H, maintained at same pressure are isothermal...

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  5. For the reaction X (2) O (4 (l)) to 2 XO (2 (g)) , Delta u = 2.1 kcal ...

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  6. Given PbO ((s)) + C ((s)) to Pb ((s)) + CO ((g)) , Delta H = 108 kJ mo...

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  7. A reaction has value of Delta H = -40 kcal mol^(-1) at 400 K. Below 4...

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  8. Calculate free energy change at 27^(@)C for the reaction H (2) + Cl ...

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  9. Delta G (f) ^(0) of NH(3(g)),NO and H (2)O ((l)) are respectively (in...

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  10. The standard emf of the cell reaction Zn ((s)) + Cu (aq) ^(2+) to Zn ...

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  11. Consider the following spontaneous reaction C (6) H (5) COOH ((s)) + (...

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  12. Given : PbO (2) to PbO Delta G (298K) lt 0 Sn O (2) to Sn O Delta G ...

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  13. Standard Gibbs free energy change of a reaction is zero. The value of ...

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  14. For the reactions 4C ((g)) + 5 H (2 (g)) to C (4) H (10) (n-bu tan e) ...

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  15. Equilibrium pressure for Ca CO (3 (g)) hAr Ca O ((s)) + CO (2 (g)) is ...

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  16. A) For N(2) O gas, the difference in specific heats at constant press...

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  17. Assertion : For the reaction 2 NH (3 (g)) to N (2 (g)) + 3 H (2 (g))...

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  18. Assertion : Eventhough HF is a weak acid heat liberated during neutral...

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  19. Assertion : At constant temperature and pressure chemical reactions ar...

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  20. Assertion : Adiabatic expansion of a gas decreases its internal energ...

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