C4.5.1 - Hess' Cycles

What is the first step in writing a Hess’ Cycle (formation)?

write the balanced equation at the top

When writing a Hess’ Cycle (formation), what do you do after you write the balanced equation at the top?

write the elements in their constituent states at the bottom

When writing a Hess’ Cycle (formation), what do you do after you write the elements in their constituent states at the bottom?

draw in all the arrows in the correct directions

When writing a Hess’ Cycle (formation), what do you do after you draw in all the arrows in the correct directions?

label the standard enthalpy of formations

When writing a Hess’ Cycle (formation), what do you do after you label the standard enthalpy of formations?

apply Hess’ Law, a = b + c

What is the first step in writing a Hess’ Cycle (combustion)?

write the balanced equation at the top

When writing a Hess’ Cycle (combustion), what do you do after you write the balanced equation at the top?

write the balanced combustion products at the bottom

When writing a Hess’ Cycle (combustion), what do you do after you write the balanced combustion products at the bottom?

draw in all the arrows in the correct directions

When writing a Hess’ Cycle (combustion), what do you do after you draw in all the arrows in the correct directions?

label the standard enthalpy of formations

When writing a Hess’ Cycle (combustion), what do you do after you label the standard enthalpy of formations?

apply Hess’ Law, a = b + c

Do the arrows in a combustion Hess’ Cycle go upwards or downwards?

downwards

Do the arrows in a formation Hess’ Cycle go upwards or downwards?

upwards