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Principles of Thermodynamics and Temperature Scales Quiz

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#1

Which of the following is a statement of the first law of thermodynamics?

Energy cannot be created or destroyed.
Explanation

Conservation of energy principle.

#2

What is absolute zero in the Celsius scale?

−273.15°C
Explanation

Lowest possible temperature, no molecular motion.

#3

What is the formula to convert temperature from Fahrenheit (F) to Celsius (°C)?

C = (F - 32) / 9
Explanation

Conversion equation for temperature scales.

#4

What is the SI unit of temperature?

Kelvin (K)
Explanation

International standard for temperature measurement.

#5

Which law of thermodynamics states that energy cannot be created or destroyed?

First law
Explanation

Conservation of energy principle.

#6

What is the formula for converting temperature from Kelvin to Celsius?

C = K - 273.15
Explanation

Temperature conversion equation.

#7

What law states that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature?

Boyle's law
Explanation

Pressure and volume relationship in gases.

#8

Which of the following temperature scales does not have negative temperatures?

Kelvin
Explanation

Absolute temperature scale, no negative values.

#9

Which law of thermodynamics states that the total entropy of an isolated system can never decrease over time?

Second law
Explanation

Entropy always increases in isolated systems.

#10

At what temperature do Celsius and Fahrenheit scales have the same numerical value?

−40°C
Explanation

Point where both scales intersect.

#11

Which law states that the volume of a given mass of an ideal gas is directly proportional to its absolute temperature at constant pressure?

Charles's law
Explanation

Volume and temperature relationship in gases.

#12

What is the boiling point of water in Kelvin?

373.15 K
Explanation

Temperature at which water transitions to vapor.

#13

What is the relationship between the Celsius (°C) and Kelvin (K) scales?

They have the same size degrees but different zero points.
Explanation

Scaling difference with common degree size.

#14

What is the triple point of water in Kelvin (K)?

273.15 K
Explanation

Unique state of water at equilibrium.

#15

What is the relationship between Celsius and Fahrenheit scales?

F = (C * 9/5) + 32
Explanation

Conversion equation between the two scales.

#16

Who introduced the concept of absolute zero?

William Thomson, 1st Baron Kelvin
Explanation

Scientist credited with absolute zero concept.

#17

Which temperature scale has the smallest degree size?

Rankine
Explanation

Absolute temperature scale with small degrees.

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