Unit 6.6: Introduction to Enthalpy of Reaction
Describe energy exchange between reaction systems and surroundings.
- Explain why an exothermic reaction warms its surroundings.
-
Describe energy flow in an endothermic reaction at the molecular
level.
Calculate the amount of heat absorbed/released in a reaction using ∆H in
a stoichiometric calculation.
-
How much energy is released when 2 moles of H2 react with O2 to form
water (∆H = -286 kJ/mol)?
-
Given ∆H, calculate heat change for a reaction involving 3 moles of
reactant.
Compare and contrast the chemical potential energy of reactants and
products in a system.
-
Which has higher potential energy in an exothermic reaction, reactants
or products?
-
Explain how bond energies affect the chemical potential energy
difference.