#1
Which of the following is a measure of the average kinetic energy of particles in a substance?
Temperature
ExplanationTemperature measures average kinetic energy.
#2
What is the SI unit of heat energy?
Joule
ExplanationJoule is the SI unit of heat energy.
#3
Which material is a poor conductor of heat?
Wood
ExplanationWood is a poor conductor of heat.
#4
The transfer of heat energy through direct contact of particles is known as:
Conduction
ExplanationConduction is the transfer of heat through direct contact.
#5
What happens to the volume of a gas when it is heated while keeping the pressure constant?
Increases
ExplanationVolume of gas increases with constant pressure when heated.
#6
Which substance has the highest specific heat capacity?
Water
ExplanationWater has the highest specific heat capacity.
#7
Which law of thermodynamics states that energy cannot be created or destroyed, only transferred or transformed?
First law
ExplanationFirst law of thermodynamics states conservation of energy.
#8
Which of the following statements about thermal expansion is correct?
Solids expand more than liquids when heated.
ExplanationSolids expand more than liquids upon heating.
#9
What is the name of the process by which a substance loses heat energy by changing from a gas to a liquid?
Condensation
ExplanationCondensation is the process of gas to liquid heat loss.
#10
Which law of thermodynamics states that the entropy of any isolated system always increases?
Second law
ExplanationSecond law of thermodynamics deals with entropy increase in isolated systems.