Q4.
(a)
M1 for Temperature data including units
M2 for Burner mass data including units If either unit
missing MAX 1
M1
M2
(b) Any two from:
Glass is a poorer conductor than copper
M1
Tripod and gauze would reduce heat transfer
Tripod and gauze would have a fixed height above the flame
Heat capacity of metal is less than glass or vice versa
M2
(c) Heat loss to surroundings or to copper/calorimeter
M1
Incomplete combustion
M2
(d) Use a wind shield (to reduce heat loss)
Allow use a lid
Insulate the sides of the calorimeter
1
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