Question

For a particular reaction, Δ𝐻=139.99 kJ/mol and Δ𝑆=298.7 J/(mol·K).Calculate Δ𝐺 for this reaction at 298 K. What can be said about the spontaneity of the reaction at 298 K?The system is at equilibrium.The system is spontaneous in the reverse direction.The system is spontaneous as written.

          For a particular reaction, Δ𝐻=139.99 kJ/mol and Δ𝑆=298.7 J/(mol·K).Calculate Δ𝐺 for this reaction at 298 K. What can be said about the spontaneity of the reaction at 298 K?The system is at equilibrium.The system is spontaneous in the reverse direction.The system is spontaneous as written.
        
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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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For a particular reaction, Δ𝐻=139.99 kJ/mol and Δ𝑆=298.7 J/(mol·K).Calculate Δ𝐺 for this reaction at 298 K. What can be said about the spontaneity of the reaction at 298 K?The system is at equilibrium.The system is spontaneous in the reverse direction.The system is spontaneous as written.
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Transcript

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00:01 All right the question here says for a particular reaction we're told that delta h is 27 .58 kilojoules.
00:09 So delta h is positive and delta s is 284 .6 kilojoules per kelvin.
00:28 So the question is what is delta g for the reaction? delta g is delta h minus t delta s and of course we have to convert this to kilojoules so that's 0 .2846.
00:46 So delta h would be 27 .58 minus 298 times 0 .2846 and the answer to that will be minus 57 .23 kilojoules.
01:08 So the question then says what can be said about the spontaneity of the reaction? well delta g is negative less than zero so the reaction is spontaneous...
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