Limestone stalactites and stalagmites are formed in caves by

Last updated: 7/31/2022

Limestone stalactites and stalagmites are formed in caves by the ollowing reaction: Ca²+ (aq) + 2HCO3(aq) → CaCO3(s) + CO2(g) + H₂O(1) f 1 mol of CaCO3 forms at 298 K under 1 atm pressure, the reaction performs 2.49 kJ of P-V work, pushing back the atmosphere as the gaseous CO₂ forms. At the same time, 38.85 J of heat is absorbed from the environment. What is the value of AH for this reaction? Express your answer using four significant figures