WorksheetsThermochemistry
Total questions: 15
Worksheet time: 8mins
An exothermic reaction
absorbs heat
releases heat
produces sugar
is really endothermic
An endothermic reaction
releases heat
absorbs heat
produces fuel
produces oxygen
Enthalpy is represented by:
Q
J
Calories
H
The system is represented by:
the surroundings
everything but the reaction
the chemical reaction
any element
The surroundings are :
the chemical reaction
everything except the chemical reaction
everything affected by the chemical reaction
fuel
Thermochemistry is the study of:
chemistry of metals
chemistry of water
heat flow in a chemical reaction
energy
The formula for specific heat is:
q=mc
q=deltaTm
q=mcdeltaT
q=c
Combustion reaction has two reactants, they are:
fuel and carbon dioxide
carbon dioxide and oxygen
fuel and oxygen
water and fuel
The surroundings are :
the chemical reaction
everything except the chemical reaction
everything affected by the chemical reaction
fuel
The units of heat are:
calories and Calories
Joules and calories
Calories and Enthalpy
Enthalpy and Exothermic
The more fuel a forest fire has, the faster the fire moves and the hotter it burns.
True
False
4000calories = ? Calories (kcal)
40Calories
400Calories
4Calories
.4Calories
5.5Calories = ? calories
550 calories
50 calories
5500calories
.550calories
41.84J = ? calories
.4184calories
41.84 Calories
4.184J
10J
200calories = ?J
.200Calories
2000Calories
47.80J
.4780J
