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13 Dec 2019

Consider a chemical reaction with a standard reaction enthalpy of 50 kJ mol-1 and a standard reaction entropy of 65 J mol-1 K-1. Over what Celsius temperature range is the reaction spontaneous?

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carminerabbit896

Calculate the standard Gibbs energy of the reaction, H₂(g) + (1/2)O₂(g) ? H₂O(l), from the values of the standard enthalpy of formation of H₂O(l) [-286 kJ mol^-1] and of the standard reaction entropy of this reaction [-164 JK^-1mol^-1]. Use temperature, T, of 298 K.

A) -237 kJ mol^-1

^B) 48,586 kJ mol^-1

^C) -335 kJ mol^-1

^D) -49,158 kJ mol^-1

^{Please provide an explanation for the answer}

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Consider a chemical reaction with a standard reaction enthalpy of 50 kJ mol-1 and a standard reaction entropy of 65 J mol-1 K-1. Over what Celsius temperature range is the reaction spontaneous?

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