How Much Heat Is Liberated at Constant Pressure If 0

question 55

Multiple Choice

How much heat is liberated at constant pressure if 0.515 g of calcium carbonate reacts with 32.7 mL of 0.498 M hydrochloric acid? CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(l) + CO₂(g) ; Δ_rH° = -15.2 kJ/mol-rxn

• A) -0.0782 kJ
• B) -0.202 kJ
• C) -7.83 kJ
• D) -0.124 kJ
• E) -7.57 kJ

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