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For the isothernmal expansion of an idea...

For the isothernmal expansion of an ideal gas

A

`U` and `H` increases

B

`U` increases but `H` decreases

C

`H` increases but `U` decreases

D

`U` and `H` are unaltered

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The correct Answer is:
D
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RESONANCE-THERMODYNAMICS-Exercise -1 Part -II Only option correct type
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  3. For the isothernmal expansion of an ideal gas

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  5. A vessel contains 100 litres of a liquid X. Heat is supplied to the li...

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  6. H(2)O((s))rarrH(2)O((l)) This phase transition is carried out at con...

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  7. At 1 atm pressure freezing of n mole of water liquid (0^(@)C) then hea...

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  8. The free energy change for a reversible reaction at equilibrium is:

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  9. Delta H^(@) for the reaction X((g))+Y((g))hArrZ((g)) is -4.6 kcal, the...

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  10. Determine which of the following reactions at constant pressure repres...

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  11. Consider the reaction at 300 K H(2)(g)+Cl(2)(g)rarr2HCl(g), " "Del...

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  12. If DeltaH is the enthalpy change and DeltaU the change in internal ene...

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  13. Which plot represent an exothermic reaction ?

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  14. For which of the following change Delta H!=Delta U?

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  15. Calculate the standard internal energy of formation of liquid methyl a...

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  16. 2C+O(2)rarr2CO, Delta H= - 220 kJ which of the following statements is...

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  17. {:(C(s)+O(2)(g)rarrCO(2)(g), ,,,,DeltaH= -94.3 kcal//mol),(CO(g)+(1)/(...

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  18. In the reaction , CO(2)(g)+H(2)(g)rarrCO(g)+H(2)O(g), " "DeltaH= 2.8...

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  19. Given, H(2)(g)+Br(2)(g)rarr2HBr(g),DeltaH(1)^(0) and standard enthalpy...

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  20. For the following reaction, {:(C("diamond")+O(2)to CO(2)(g),, DeltaH...

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