The enthalpy change of a compound when one mole of the compound, in its standard state, is formed from its constituent elements in their standard states.
1 of 5
The difference in the heat contents of the products and the reactants is called...?
Heat of the reaction
2 of 5
Under what set of standard conditions do standard enthalpies occur?
A stated temperature of 298 K (25°C), a pressure of 100 kPa (1 atmosphere) and a concentration of 1.0 mol dm−3 (for reactions with aqueous solutions).
3 of 5
When 1.0 mole of ZnO(s) decomposes, the ΔH = 348 kJ/mol of heat energy. What does this tell you about the formation of ZnO(s)?
The formation of ZnO(s) is exothermic.
4 of 5
What does Hess' Law state?
If a reaction can take place by more than one route and the initial and final conditions are the same, the total enthalpy change is the same for each route.
5 of 5
Other cards in this set
Card 2
Front
The difference in the heat contents of the products and the reactants is called...?
Back
Heat of the reaction
Card 3
Front
Under what set of standard conditions do standard enthalpies occur?
Back
Card 4
Front
When 1.0 mole of ZnO(s) decomposes, the ΔH = 348 kJ/mol of heat energy. What does this tell you about the formation of ZnO(s)?
Comments
No comments have yet been made