Which change has a positive entropy change?
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12 questions
Dissolving a solid in water usually
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Calculate ΔS for . (J K⁻¹ mol⁻¹): N₂ 192, H₂ 131, NH₃ 193.
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A reaction with ΔH negative and ΔS positive is
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A reaction with ΔH positive and ΔS positive becomes feasible
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The entropy of a perfect crystal at 0 K is
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Which has the highest standard entropy?
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On a graph of ΔG against T, the gradient is
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For a reaction, kJ mol⁻¹ and J K⁻¹ mol⁻¹. Calculate ΔG at 298 K.
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kJ mol⁻¹, J K⁻¹ mol⁻¹. Calculate the minimum temperature (K) at which the reaction is feasible.
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A reaction has ΔG < 0 but does not happen at room temperature. The best explanation is
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For , kJ mol⁻¹, J K⁻¹ mol⁻¹. Above what temperature (K) would the reaction no longer be feasible?
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