Calorimetry Notes

Question 1

How can you measure the amount of heat released when a match burns?

Answer 1

The concept of specific heat allows you to measure heat flow in chemical and physical process

Question 2

What is the measurement of the heat flow into or out of a system for chemical and physical process?

Answer 2

Calorimetry

Question 3

The insulated device used to measure the absorption or release of heat in chemical or physical process is called?

Answer 3

Calorimeter

Question 4

Most chemical reactions and physical changes carried out in the laboratory are open to the atmosphere and thus occur at?

Answer 4

Constant pressure

Question 5

Accounts for the heat flow of the system at constant pressure

Answer 5

Enthalpy(H)

Question 6

How can you measure the change in enthalpy of a reaction?

Answer 6

By measuring the heat flow of the reaction at constant pressure

Question 7

To measure the enthalpy change for a reaction in aqueous solution. In a foam cup calorimeter you must

Answer 7

Dissolve the reacting chemicals (system) in known volumes of water (the surrounding)

Question 8

Measure the _______________ temperature

Answer 8

Initial

Question 9

After a reaction is complete measure the __________ temperature

Answer 9

Final

Question 10

The sign of H is ______________for and endothermic reaction and _____________ reaction
If the sign is + it’s ending; - exo

Answer 10

Positive

Negative