Calorimetry Experiment

Question 1

What is the purpose of the using a (bomb) calorimeter

Answer 1

-to measure the heat change of a reaction
-to measure the the energy change of a reaction
-to finally measure the overall enthalpy change if a reaction experimentally

Question 2

Sources of inaccuracy

Answer 2

-heat lost to surroundings
-incomplete combustion
-evaporation of reactants before the reaction occurs

Question 3

Which types of reactions can calorimeters be used to measure the energy change of

Answer 3

-Reactions that can occur in vessels
E.g combustion or neutralisation or hydration etc

Question 4

Why do we have to extrapolate to find maximum temperature

Answer 4

-because heat is always being lost from the calorimeter so the final and initial temperatures are inaccurate

Question 5

What does it mean if the enthalpy
Change of a reaction is close to 0

Answer 5

• the total bond released from forming bonds must be similar to the total energy input to break bonds

-therefore same (similar)number of Homs type beint broken and made