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When One Mole of Zinc and Two Moles of Hydrochloric \rightarrow

Question 44

Multiple Choice

When one mole of zinc and two moles of hydrochloric acid undergo the reaction Zn(s) + 2 HCl(aq) \rightarrow ZnCL2 (aq) + H2(g) , 150.0 kJ of thermal energy are released at 25.00 °\degree C and 1.000 atm.The H2 gas generated does approximately 2.500 kJ of work on the surroundings as it expands.Calculate Δ\Delta E for the reaction (assume only P - V work is done) .


A) +103.3 kJ
B) (-145.5 kJ)
C) (-147.5 kJ)
D) +152.5 kJ
E) (-152.5 kJ)

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