2Cr s 3H 2 O g 3H 2 g Cr 2 O 3 s Substance Cr s H 2 O g H 2 g Cr 2 O 3 s Δ H f

# 2cr s 3h 2 o g 3h 2 g cr 2 o 3 s substance cr s h 2 o

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2Cr( s ) + 3H 2 O( g ) 3H 2 ( g ) + Cr 2 O 3 ( s ) Substance Cr( s ) H 2 O( g ) H 2 ( g ) Cr 2 O 3 ( s ) Δ f (kJ/mol) 0 ­242 ­0 ­1140 Δ f (kJ/mol) 0 ­229 ­0 ­1058 S °(J/K·mol) 24 189 131 81 1.1 x 10 65 5.29 x 10 24 1.13 x 10 ­65 5.29 x 10 ­24 QUEST ION 13 0.5 points Save Answer Calculate the reaction free energy of 2NO( g ) + O 2 ( g ) 2NO 2 ( g ) QUEST ION 14 0.5 points Save Answer

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Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window Save and Submit 2 2 when the concentrations are 0.06 mol L ­1 (NO), 0.03 mol L ­1 (O 2 ), and 1.27 mol L ­1 (NO 2 ), and the temperature is 500K. For this reaction K c = 45 at 500 K. 24.1 kJ 10.5 kJ 5.8 kJ 2.5 kJ In some spontaneous processes, the entropy of the system decreases. True False QUEST ION 15 0.5 points Save Answer
• Fall '19
• 1 m, Oxide, 25°C, 282 g, 406 g, 2PbS

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