random Flashcards
1
Q
how can you calculate enthalpy change from experimental data
A
q=mc△t
2
Q
what is a flame calorimeter and how does it differ to a simple calorimeter
A
reduces heat lost to the surroundings to give more accurate results: has a spiral chimney made of copper an enclosed flame and the fuel in burnt in pure oxygen, not air
3
Q
why will using bond enthalpies not be as accurate as using standard enthalpy of combustion/formation?
A
bond enthalpies are a mean for the same bond across different molecule; standard enthalpy of combustion and formatioin apply to just that molecule
