Gibbs Free Energy Video Lessons

Concept

# Problem: For a  particular reaction, ΔH = -144.6 KJ and ΔS = -301.2 J/KCalculate the ΔG for this reaction at 298k1) ΔG in KJ?2) What can be said about the spontaneity of the reaction at 298k?a) spontaneous  in the reverse directionb) spontaneous as written

###### FREE Expert Solution

We can calculate for ΔG˚ using the following equation:

$\overline{){\mathbf{∆}}{\mathbf{G}}{\mathbf{°}}{\mathbf{=}}{\mathbf{∆}}{\mathbf{H}}{\mathbf{°}}{\mathbf{-}}{\mathbf{T}}{\mathbf{∆}}{\mathbf{S}}{\mathbf{°}}}$

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###### Problem Details

For a  particular reaction, ΔH = -144.6 KJ and ΔS = -301.2 J/K

Calculate the ΔG for this reaction at 298k

1) ΔG in KJ?

2) What can be said about the spontaneity of the reaction at 298k?

a) spontaneous  in the reverse direction

b) spontaneous as written