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One mole of ice is converted into water at 273 K. The entropies of `H_(2)O(s)` and `H_(2)O(l)` are 38.20 and 60.01 J `mol^(-1)K^(-1)` respectively. Calculate the enthalpy change for this conversion a ?

A

`59.54 J mol^(-1)`

B

`5954 J mol^(-1)`

C

`595.4 J mol^(-1)`

D

`320.6 J mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=TDeltaS=273xx(60.01-38.20)`
`=5954.13 J mol^(-1)`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  4. The equilibrium constant for a reaction is 10. What will be the value ...

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  5. One mole of an ideal gas expanded freely and isothermally at 300 K fro...

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  6. For the reaction C(6)H(12)(l)+9O(2)(g)to6H(2)O(l)+6CO(2)(g) , DeltaH...

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  7. Given that the data for neutralization of weak acid (HA) and strong ac...

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  8. A system absorbs 10 kJ of heat at constant volume and its temperature ...

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  9. How many kcal of heat is evolved by the complete neutralisation of one...

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  10. Given Delta(i)H^(Theta)(HCN) = 45.2 kJ mol^(-1) and Delta(i)H^(Theta)(...

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  11. Calculate the work done when 1.0 mol of water at 373K vaporises agains...

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  12. The maximum efficiency of heat engine operating between 100 ^(@) and 2...

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  13. A gas absorbs 250 J of heat and expands from 1 litre to 10 litres agai...

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  14. Which of the following value of DeltaH(f)^(@) represent that the produ...

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  15. The enthalpies of formation of N(2)O and NO are respectively 82 and 90...

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  16. The value of DeltaH(O-H) is 109 kcal mol^(-1). Then formation of one m...

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  17. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

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  18. For a system in equilibrium, DeltaG=0, under conditions of constant

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  19. In the reversible reaction of the type A+B hArr AB, in general.

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  20. Given C(s)+O(2)(g)toCO(2)(g), DeltaH=-395 kJ S(s)+O(2)(g)toSO(2)(g...

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