Why is there always an energy change in
Exothermic means:
a chemical reaction?
Endothermic means:
If an exothermic reaction occurs, the
surroundings.......
If an endothermic reaction occurs, the
Examples of exothermic reactions are:
surroundings.......
Examples of endothermic reactions are:
In a reversible reaction the energy change
for each part of the reaction is:
Exothermic reaction profile:
Endothermic reaction profile:
Energy
Energy
ENDOTHERMIC
EXOTHERMIC
A + B
C + D
A + B
C + D
To convert the hydrated copper sulphate
Hydrated Copper sulphate (CuSO4.5H2O) to anhydrous copper sulphate we need
(colour = _________________________)
Anhydrous copper Sulphate and Water
to....
This tells us this reaction is.......
(CuSO4 and 5H2O)
(colour = ______________________________)
To convert the anhydrous copper sulphate
In a reaction at equilibrium we can
to hydrated copper sulphate we need to....
control the yield of products by changing
the:
_________________________________________________
The reaction produces ________________
This tells us this reaction is.......
If a reaction is exothermic increasing the
If a reaction is exothermic decreasing the
temperature will:
temperature will:
If a reaction is endothermic increasing the
If a reaction is endothermic decreasing
temperature will:
the temperature will:
The equation for the Haber Process is:
In a reaction which has more moles of gas
in the reactants:
Increasing the pressure will:
There are _____ moles of gas in the
reactants and ______moles of gas in the
products.
In a reaction which has more moles of gas
In a reaction which has more moles of gas
in the reactants:
in the products:
Decreasing the pressure will:
Increasing the pressure will:
In a reaction which has more moles of gas
Actual conditions for the Haber Process:
in the products:
Temperature = __________ oC
Decreasing the pressure will:
Pressure = __________ atm
Best conditions for the Haber Process:
Temperature = __________ oC
Pressure = __________ atm
We use compromise conditions for the
Yield of
reaction – this is because:
ammonia
(%)
Pressure (atm)
If we increase the temperature in the
If we increase the pressure in the Haber
Haber process the yield of the process:
process the yield of the process: