Chemistry Practice Problems Spontaneous Reaction Practice Problems Solution: For a particular reaction, delta Hº is 55.4 kJ/mol...

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Solution: For a particular reaction, delta Hº is 55.4 kJ/mol and delta Sº is 94.1 J/(molK). Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction? 

Problem

For a particular reaction, delta Hº is 55.4 kJ/mol and delta Sº is 94.1 J/(molK). Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction? 


Solution

Let's use Gibbs Free Energy Equation:
ΔG = ΔH - TΔS
Since the reaction is spontaneous, therefore ΔG < 0:

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