Question

Answer these questions

Answer 1

1) The decomposition of water which is the reverse of formation has an enthalpy change of +286 kJ, the reaction is an endothermic reaction. Therefore, the thermal effect of decomposition of water has the same value as the the thermal effect of formation which is 286 kJ.

2)The standard enthalpy of formation of glucose is -1273.3kJ/mol.

Yes it's exothermic.

3) To calculate ΔS° for a chemical reaction from standard molar entropies, we use the familiar “products minus reactants” rule, in which the absolute entropy of each reactant and product is multiplied by its stoichiometric coefficient in the balanced chemical equation.

4) Yes

5) B.