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The change in entropy for the process KC...

The change in entropy for the process `KCl(s)+100H_(2)O(l)toKC l (100H_(2)O)` is called______.

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Integral heat of solution.
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If at normal pressure and 100^(@)C the changes in enthalpy and entropy for the process, H_(2)O(l)toH_(2)O(g), are DeltaH and DeltaS respectively, then DeltaH-DeltaU is-

Calculate the entropy change at 0^(@) C for the process- H_(2)O(s) to H_(2)O(l) . Given: At 0^(2)C" "C_(2)O(s)toH_(2)O(g),DeltaH=51885J*mol^(-1) and H_(2)O(l)toH_(2)O(g),DeltaH=45860J*mol^(-1) .

Calculate the entropy change, at 0^@C for the process H_2O(s) rarr H_2O(I) . Given : At 0^@C , H_2O(s) rarr H_2O(g) , Delta H=51885 J. mol^-1 and H_2O(I) rarr H_2O(g) , Delta H=45860 J. mol^-1 .

What does DeltaH signify in each of the following equations? (i) HCl(g)+5H_(2)O(l)toHC l(5H_(2)O),DeltaH=-64kJ (ii) HCl (g)+aqtoHC l(aq),DeltaH=-75kJ (iii) HC l(5H_(2)O)+20H_(2)O(l)toHCl (25H_(2)O),DeltaH=-8.1kJ .

The standard entropy change for the reaction C_3H_(6(g)) + 9/2O_(2(g)) to 3CO_(2(g)) + 3H_2O_((l)) is – 339.23 JK-1 at 25^@C . Calculate the standard reaction enthalpy change if the standard Gibbs energy of formation of C_3H_(6(g)), CO_(2(g)) and H_2O_((l)) are 62.78, – 394.36 and –237.13 kJ. "mol"^(–1) respectively.

At 25^(@) C, is the standard reaction enthalpy for the reaction 2H(g) +O(g)toH_(2)O(l) the same as the standard enthalpy of formation of H_(2)O(l) ?

For each of the given changes, state whether the final enthalpy is greater or less than the initial enthalpy: (1) H_(2)O (s) to H_(2)O (l) (2) H_(2)O(g)toH_(2)O(l) .

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