3.1.4 ENERGETICS AUTUFF

100kPa and 298K

heat energy change measured under conditions of constant pressure

Enthalpy change when ONE mole of substance is burnt completely in oxygen in their standard state and under standard conditions

Enthalpy change when ONE mole of a compound is formed from its constituent elements under standard conditions with all reactants and products in their standard states.

total enthalpy change is same to any pathway taken as long starting and final conditions are same

Up

You reverse the sign for that enthalpy

down

average amount of energy needed to break one mole of the specific bond in a molecule in gaseous state

because in different molecules the bonds enthalpy is different

1)use q = mcΔt to find heat energy of WATER
2)Find moles of SUBSTANCE
3) heat energy/moles