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One reaction used to produce small quantities of pure H₂ is CH₃OH(g) ⇄ CO(g) + 2H₂(g) (d) At what temperature (in K) does the reaction become spontaneous?

Respuesta :

The reaction starts spontaneously at 411 K.

As the temperature rises, ΔG° value decreases. The value switches from being positive to being negative. The reaction's spontaneity shifts from non spontaneous to spontaneous.

The formula ΔG°, as shown below, can be used to determine the temperature at which the reaction becomes spontaneous.

Here ΔG° turns into zero.

ΔG°=ΔH°-TΔS°

0= 90.7 kJ/mol-T(220.7J/mol.K)(1kJ/1000J)

T=90.7/0.2207K

T=411 K

As a result, the reaction starts spontaneously at 411 K.

Learn more about ΔG° here:

https://brainly.com/question/17214066

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