What will be the melting point of KCl if enthalpy change for the reaction is `"7.25 J mol"^(-1)` and entropy change is `"0.007 J K"^(-1)"mol"^(-1)`?

Zinc reacts with dilute hydrochloric acid to give hydrogen at 17^(@)C . The enthalpy of the reaction is -12.55kJ mol^(-1) of zinc and entropy change equals 5.0 J k^(-1)" "mol^(-1) for the reaction. Calculate the free energy change and predict whether the reaction is spontaneous or not.

At 25^(@)C the enthalpy change, for the ionization of trichloroacetic acid is +"6.3 kJ mol"^(-1) and the entropy change, is +"0.0084 kJ mol"^(-1)K^(-1) . Then pKa of trichloro acetic acid is

At 25^(@)C the enthalpy change, for the ionization of trichloroacetic acid is +"6.3 kJ mol"^(-1) and the entropy change, is +"0.0084 kJ mol"^(-1)K^(-1) . Then pKa of trichloro acetic acid is

A reaction is at equilibrium at 100^(@)C and the enthalpy change for the reaction is "42.6 kJ mol"^(-1) . What will be the value of DeltaS in "J K"^(-1)"mol"^(-1) ?

A reaction is at equilibrium at 100^(@)C and the enthalpy change for the reaction is "42.6 kJ mol"^(-1) . What will be the value of DeltaS in "J K"^(-1)"mol"^(-1) ?

For a reaction, X + Y rarr Z there is no entropy charge. Enthaply change for the reaction is 100J mol^(-1) . Delta G is

For the melting of ice at 25^(@)C : H_(2)O(s) to H_(2)O(l) the enthalpy of fusion is 6.97 kJ mol^(-1) and entropy of fusion is 25.4 J mol^(-1)K^(-1) .Calculate the free energy change and predict whether melting of ice is spontaneous or not at this temperature.

The entropy change for eaction at 300 K is 120 Jk^(-1) mol^(-1) . What is the enthalpy change for the reaction ?