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Use the reaction 1₂(s) = 12(g), AH = 62.4 kJ/mol, AS = 0.145 kJ/(mol-K), for
this question.
What can be said about the reaction at 500 K?
A. It proceeds rapidly.
B. It is exothermic.
C. It is spontaneous.
D. Its entropy decreases

Use the reaction 1s 12g AH 624 kJmol AS 0145 kJmolK for this question What can be said about the reaction at 500 K A It proceeds rapidly B It is exothermic C I class=

Respuesta :

shristiparmar1221

The Reaction is spontaneous when temperature is 430 K. Hence, Option (C) is correct.

What is Spontaneous reaction ?

Reactions are favorable when they result in a decrease in enthalpy and an increase in entropy of the system.

When both of these conditions are met, the reaction occurs naturally.

Spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring.

According to Gibb's equation:

ΔG = ΔH - TΔS

ΔG = Gibbs free energy

ΔH = enthalpy change  = +62.4 kJ/mol

ΔS = entropy change  = +0.145 kJ/molK

T = temperature in Kelvin

  • ΔG  = +ve, reaction is non spontaneous
  • ΔG = -ve, reaction is spontaneous
  • ΔG   = 0, reaction is in equilibrium

ΔH - TΔS = 0 for reaction to be spontaneous

T = ΔH / ΔS

Here,

T = 500K

Thus the Reaction is spontaneous when temperature is 500 K.

Learn more about Gibbs free energy here ;

https://brainly.in/question/13372282

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