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Which has the correct entropy change description

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Reference no: EM132058216

Consider a process that is spontaneous at high temperatures but becomes non spontaneous at low temperatures. The sign of  ΔH for that process would have to be?

Mg (s) + Cl2 (g) --> MgCl2 (s) [entropy is increasing]

2H2O (l) --> H2 (g) + O2 (g) [entropy is increasing]

2H2O (l) --> H2 (g) + O2 (g) [entropy is decreasing]

2C2H6 (g) + 7O2 (g) --> 4CO2 (g) + 6H2O (g) [entropy is decreasing]

Which has the correct entropy change description?

Reference no: EM132058216

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