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Heat and Thermal Systems Quiz

#1

Which of the following is a unit of heat?

Joule
Explanation

Joule is a unit of heat.

#2

What is the unit of specific heat capacity?

Joule per kilogram per degree Celsius
Explanation

Specific heat capacity is measured in Joule per kilogram per degree Celsius.

#3

Which of the following is NOT a method of heat transfer?

Expansion
Explanation

Expansion is not a method of heat transfer.

#4

Which of the following materials is a good conductor of heat?

Silver
Explanation

Silver is a good conductor of heat.

#5

What is the process of heat transfer through electromagnetic waves called?

Radiation
Explanation

Heat 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
Explanation

Conduction 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
Explanation

The First Law of Thermodynamics states energy conservation.

#8

Which substance has the highest specific heat capacity?

Water
Explanation

Water 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
Explanation

Sublimation is the direct transition from solid to gas.

#10

What is the formula to calculate the amount of heat transferred?

Q = mcΔT
Explanation

The amount of heat transferred is calculated using Q = mcΔT.

#11

What is the SI unit of thermal conductivity?

Watt per meter per kelvin
Explanation

Thermal conductivity is measured in Watt per meter per kelvin.

#12

What is the formula to calculate thermal resistance?

R = (L/kA)
Explanation

Thermal 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
Explanation

The Second Law of Thermodynamics defines entropy behavior.

#14

What is the unit of emissivity?

Dimensionless
Explanation

Emissivity is dimensionless.

#15

What does the Stefan-Boltzmann law describe?

The relationship between temperature and radiation emitted by a black body
Explanation

The Stefan-Boltzmann law describes temperature and radiation relationship.

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