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Thermodynamic Processes

10. For endot...

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10. For endothermic reaction to be spontaneous change in entropy should be?

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Q. Statement 1: An endothermic reaction can be spontaneous
Statement 2: Both the enthalpy and the entropy changes affect the Gibbs free-energy change of the reaction.

Q. The reaction

S O {C l}_{2} + H_{2} O ⟶ {S O}_{2} + 2 H C l

is endothermic by

49.4 k J

and exoergonic by

50.8 k J

. What is the factor that makes the reaction to be spontaneous? Calculate the entropy change at

298 K

Q. Identify the correct statement regarding a spontaneous process
1) For a spontaneous process in an isolated system, the change in entropy is positive
2) Endothermic process are never spontaneous
3) Exothermic processes are always spontaneous (4) Lowering of energy in the reaction process is the only criterion for spontaneity

Q. A reversible reaction is at temperature

T

(K)

. Both enthalpy change and entropy change have positive values. Let

T^{'}

represents the equilibrium temperature.

For the reaction to be spontaneous, which of the following conditions should be satisfied?

Q. For a reaction both enthalpy change and entropy change are positive. Under what conditions the reaction will be spontaneous?

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