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Question3 1 pts Is the following reaction spontaneous at 450°C? A (g) P (g) + R (g) ΔΗ -16.2 kJ/mol; ΔSo--28 J/K mol O Yes,

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Answer #1

ΔHo = -16.2 KJ/mol

ΔSo = -28 J/mol.K

= -0.028 KJ/mol.K

T= 450.0 oC

= (450.0+273) K

= 723 K

use:

ΔGo = ΔHo - T*ΔSo

ΔGo = -16.2 - 723.0 * -0.028

ΔGo = 4.04 KJ/mol

Since ΔGo is positive, the reaction is non spontaneous

Answer: No, it is NOT spontaneous

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