Analía Bellizzi – Chemistry Classes

Ronald Reagan Senior High School

Thermochemistry Exercise #2

AS Thermochemistry Exercise #2 Thermochemical Equations


1. Define Standard conditions

2. Write down a chemical equation example to represent the following reactions. Indicate if the process w

a. enthalpy change of combustion

b. enthalpy change of formation

c. enthalpy change of neutralization

d. enthalpy change of solution

3. For the following equations, indicate which would be the enthalpy changes associated with them. Sometimes more than one can occur

a. H2(g) + ½O2(g) → H2O(g)

b. Ca(s) + ½O2(g) → CaO(s)

c. C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)

d. NaOH(aq) + HCl (Aq) → NaCl(aq) + H2O(l)

e. CaCO3(s) → CaO(s) + Co2(g)