Explain the enthalpy change for a reaction is negative

Reference no: EM13698028

Question- 1) Criticize the following statement: when the enthalpy change for a reaction is negative and the entropy change is also negative the reaction is spontaneous.

2) For each of the following processes, give the algebraic sign (+ or -) of ?H°, ?S°, and ?G°. No calculations are necessary. Give a brief reason for your choices.

a) The splitting of liquid water into hydrogen and oxygen gases, a process that requires a considerable amount of energy to sustain.

b) The combustion of gasoline in the engine of your car, as exemplified by the combustion of octane.

2 C8H18 (g) + 25 O2 (g) ? 16 CO2 (g) + 18 H2O(g)

Explain the each and every step in detail for help

Reference no: EM13698028

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