Stoichiometry + Energetics
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7 Terms
what is meant by the system?
the chemicals that react
why is heat loss a source of error in calorimetry?
heat escapes from the calorimeter and the temperature change is less than the actual one
why is incomplete combustion a source of error in calorimetry?
fuel may not burn completely and less heat is released than expected
why is specific heat capacity assumption an error in calorimetry?
for the solution it is assumed that its specific heat capacity is the same as of pure water
what is average bond enthalpy
mean energy to break a bond in a gas phase averaged over many compounds
what is meant by the standard enthalpy of combustion?
enthalpy change when 1 mol of a substance burns completely in excess oxygen under standard conditions
what is meant by the standard enthalpy of formation
enthalpy change when 1 mol of a compound forms from its elements under their standard states