Energetics Flashcards
1
Q
Endo? and sign
A
Endothermic reactions = in which heat is absorbed from the surroundings (temp decreases) (so + sign)
2
Q
Exdo? and sign
A
Exothermic reaction = in which heat is realsed into the surroundings (temp increases) (so - sign)
3
Q
Molar enthalpy?
A
is the amount of heat energy released or absorbed when one mole of a substance reacts
4
Q
triangle H?
A
5
Q
Q
A
is energy (J)
6
Q
n
A
number of moles
7
Q
molar enthalpy formula?
A
The molar enthalpy change, in kJ/mol (Q): The heat energy change, in J (n): The number of moles of the substance that reacted, in mol
