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KJ/mol

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AP Chemistry

Definition

Kilojoules per mole (kJ/mol) is a unit used to measure the amount of energy absorbed or released during chemical reactions on a per-mole basis.

"KJ/mol" also found in:

Subjects (6)

Practice Questions (4)

The lattice energy of LiF(s) is equal to 1036 kJ/mol. Do you predict that the lattice energy of NaF(s) should be less than or greater than 1036 kJ/mol?
How much energy needed to convert 20 g of solid gold to liquid gold given the following information? ∆Hfus = 13.2 kJ/mol, ∆Hvap = 310.9 kJ/mol.
The combustion of methane (CH₄) has a ΔH value of -890 kJ/mol. What is the ΔH for the reaction: 2CH₄(g) → C₂H₂(g) + 3H₂(g)?
The enthalpy of change for the reaction H2(g) + 1/2 O2(g) → H2O (g) is -71.2 kJ/mol. The enthalpy of change for the reaction C2H2(g) + 2H2(g) → C2H6(g) is -94.5 kJ/mol. The enthalpy of change for the reaction C2H6(g) + 7/2 O2(g) → 2CO2(g) + 3H2O(g) is -283 kJ/mol. What is the enthalpy of change for the reaction 4CO2(g) + 2H2O(g) → 2C2H2(g) + 5O2(g)?

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