Key Quiz 3 09-106 S 11

# Key Quiz 3 09-106 S 11 - Name Quiz 3(10 points 09-106...

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Name ______________________________ _ Quiz 3 (10 points) 09-106 Spring 2011 Recitation ( CIRCLE ONE TA and ONE TIME ): Christian Steve Brendan 6:30 7:30 1/27/10 (10 minutes allowed) In order to ensure the maximum amount of partial credit, please show all work and clearly circle your final answers. Thermodynamic relationships and constants are on the bottom of the reverse side. 1. A 2.00 mol ice cube at -10.0°C is placed in 100.0 mol of H 2 O(l) at 25.0°C. Assuming no heat loss to the surroundings, the temperature after thermal equilibrium is reached is ( circle one below ) 0°C greater than 0°C Briefly explain your answer, using calculation s. Δ H fus of ice is 6,007 J/mol, c P of ice = 38 J•K -1 mol -1 , and c P of H 2 O(l) = 75 •K -1 mol -1 . (3 points) 2. 5.00 mol of A(g) are reacted with 7.00 mol of B(g) through the following reaction done in 1000.0 mol of Ar(g) and in a container assumed to have a 0 heat capacity: A(g) + B(g) barb2right AB(g). Δ H for this reaction is > 0. The heat term describing the source of heat in this experiment is ( circle one below ) (1 point) (5.00 mol)( Δ H rxn ) (7.00 mol)( Δ H rxn ) (1000.0 mol)(c

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