There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In
the first step, calcium carbide and water react to form acetylene and calcium hydroxide: CaC2(s) + 2H2O(l) → C2H2(g) + Ca(OH)2(s)ΔH = −414kJ
In the second step, acetylene, carbon dioxide and water react to form acrylic acid:
6C2H2(g) + 3CO2(g) + 4H2O(g) → 5CH2CHCO2H(g)ΔH = 132kJ
Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water, and carbon dioxide from these reactions. Round your answer to the nearest kJ.
The answer is C. They lower the activation energy of an elementary step of a reaction This makes the reaction rate to increase since less energy is required to make a reaction occur.
Molarity (M) is the concentration of a solution expressed as the number of moles of solute per liter of solution: Molarity (M) = moles solute. liters solution.