Calorimetry Flashcards
1
Q
What is the equation for energy change of a reaction?
A
q = m c ΔT
2
Q
What does q stand for?
A
Energy exchanged with the surrounding
3
Q
What are the units for q?
A
J
4
Q
What does m stand for?
A
Mass of substance being heated or cooled
5
Q
What are the units of m?
A
g
6
Q
What does c stand for?
A
Specific heat capacity of the substance being heated or cooled
7
Q
What are the units of c?
A
J g⁻¹ °C⁻¹ or J g⁻¹ K⁻¹
8
Q
What does ΔT stand for?
A
Temperature change (+ or -)
9
Q
What are the units of ΔT?
A
°C to K
10
Q
What is the equation for ΔH?
A
q in kJ / mol (how many moles oof product that reacts with each other)
11
Q
Why is water often used as a heat sink for these experiments?
A
It is non-hazardous, it is readily available and it has a high specific heat capacity
