WorksheetsUnit 13: Thermochemistry
Total questions: 10
Worksheet time: 5mins
The type of reaction in which heat is released to the surroundings is called -
Endothermic
Exothermic
Synthesis
Combustion
The type of reaction in which heat is absorbed from the surroundings, causing the temperature to feel cooler -
Endothermic
Exothermic
Synthesis
Combustion
Endothermic or exothermic?
Endothermic because heat is absorbed
Exothermic because heat is released
Not enough information
Endothermic or exothermic?
Endothermic because heat is absorbed
Exothermic because heat is released
Not enough information
Gold has a specific heat of 0.129 J/(g*C). How many joules of heat energy are required to raise the temperature of 15.0 grams of gold from 22.0*C to 85.0*C?
42.6 J
64.8 J
122 J
165 J
Thermochemistry is
the study of heat changes when physical reactions occur.
the study of heat changes when chemical reactions occur.
the study of energy changes when chemical reactions occur.
What is the quantity of heat needed to change the temperature of 1 g of a substance by 1oC?
joule
enthalpy
calorimeter
specific heat
