#1
Which of the following is a unit of heat?
Joule
ExplanationJoule is a unit of heat.
#2
What is the unit of specific heat capacity?
Joule per kilogram per degree Celsius
ExplanationSpecific heat capacity is measured in Joule per kilogram per degree Celsius.
#3
Which of the following is NOT a method of heat transfer?
Expansion
ExplanationExpansion is not a method of heat transfer.
#4
Which of the following materials is a good conductor of heat?
Silver
ExplanationSilver is a good conductor of heat.
#5
What is the process of heat transfer through electromagnetic waves called?
Radiation
ExplanationHeat transfer through electromagnetic waves is called radiation.
#6
What is the process of heat transfer through a medium without any movement of the medium itself called?
Conduction
ExplanationConduction is the process of heat transfer without medium movement.
#7
Which law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another?
First law
ExplanationThe First Law of Thermodynamics states energy conservation.
#8
Which substance has the highest specific heat capacity?
Water
ExplanationWater has the highest specific heat capacity.
#9
What is the phenomenon in which a substance changes from a solid state directly to a gas without passing through the liquid state?
Sublimation
ExplanationSublimation is the direct transition from solid to gas.
#10
What is the formula to calculate the amount of heat transferred?
Q = mcΔT
ExplanationThe amount of heat transferred is calculated using Q = mcΔT.
#11
What is the SI unit of thermal conductivity?
Watt per meter per kelvin
ExplanationThermal conductivity is measured in Watt per meter per kelvin.
#12
What is the formula to calculate thermal resistance?
R = (L/kA)
ExplanationThermal resistance is calculated using the formula R = (L/kA).
#13
Which law of thermodynamics states that entropy of the universe tends to a maximum and is constant for reversible processes?
Second law
ExplanationThe Second Law of Thermodynamics defines entropy behavior.
#14
What is the unit of emissivity?
Dimensionless
ExplanationEmissivity is dimensionless.
#15
What does the Stefan-Boltzmann law describe?
The relationship between temperature and radiation emitted by a black body
ExplanationThe Stefan-Boltzmann law describes temperature and radiation relationship.