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The workdone in ergs for the reversible ...

The workdone in ergs for the reversible expansion of one mole of an ideal gas from a volume of 10 litres to 20 litres at `25^(@)C` is

A

`-2303xx8.31xx10^(7)xx298` log2

B

`-2.303xx0.0821xx298` log2

C

`-2.303xx0.0821xx298xx` log 0.5

D

`-2.303xx2xx298` log2

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The correct Answer is:
A
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ALLEN-THERMODYNAMICS -EXERCISE -2
  1. Which of the following reactions is Delta H less than Delta E ?

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  2. For a reaction 2X(s)+2Y(s)rarr 2Cl(l)+D(g) The q(p) at 27^(@)C is -...

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  3. The workdone in ergs for the reversible expansion of one mole of an id...

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  4. Two liters of N(2) at 0^(@)C and 5 atm pressure is expanded isothermal...

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  5. Two moles of an ideal gas expand spontaneouly into vacuum. The work do...

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  6. One mole of a gas occupying 3dm^(3) expands against a constant externa...

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  7. For which reaction from the following, DeltaS will be maximum?

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  8. An adiabatic process is one in which :-

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  9. Entropy means

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  10. Delta S for the reaction , MgCO(3)(s)rarr MgO(s)+CO(2)(g) will be :

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  11. Change in entropy is negative for

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  12. In which reaction Delta S is positive :-

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  13. When the egg is hard boiled, there is

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  14. If S^(@) for H(2),Cl(2) and HCl are 0.13, 0.22 and 0.19 KJ K^(-1)mol^(...

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  15. Which has the least entropy :

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  16. When two gases are mixed the entropy :-

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  17. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

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  18. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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  19. If 900J//g of heat is exchanged at boiling point of water then water...

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  20. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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