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

question 138

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 $\Delta$ 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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