Question 1

Which statement best describes the Zeroth Law of Thermodynamics?

Accepted Answer

If two systems are in thermal equilibrium with a third system, they are also in thermal equilibrium with each other.

Question 2

A thermometer is placed in contact with a body. What must happen before the thermometer can accurately measure the temperature of the body?

Accepted Answer

The thermometer and the body must reach thermal equilibrium.

Question 3

Which physical property is NOT commonly used in practical thermometers?

Accepted Answer

Viscosity

Question 4

A bimetallic strip bends when heated because:

Accepted Answer

The two metals have different coefficients of thermal expansion.

Question 5

Which equation represents the ideal gas law?

Accepted Answer

$$pV = nRT$$

Question 6

At constant volume, the pressure of an ideal gas is directly proportional to:

Accepted Answer

Temperature

Question 7

What is the temperature at which the absolute pressure of any ideal gas would become zero?

Accepted Answer

$$-273.15\ ^\circ \mathrm{C}$$

Question 8

Convert $$25\ ^\circ \mathrm{C} to $$Kelvin.

Accepted Answer

$$298\ \mathrm{K}$$

Question 9

Which of the following is a correct conversion from Celsius to Fahrenheit?

Accepted Answer

$$F = \frac{9}{5}C + 32$$

Question 10

A hot air balloon rises because:

Accepted Answer

Heating the air inside increases its temperature, causing it to expand and become less dense than the surrounding air.

Question 11

Which thermometer type is most suitable for measuring temperatures above $$1000\ \mathrm{K}$$?

Accepted Answer

Pyrometer

Question 12

Which of the following statements about Kelvin temperature is correct?

Accepted Answer

Kelvin temperatures are measured in kelvins, not degrees kelvin.

Question 13

If a thermometer uses the resistance of platinum to measure temperature, which property is it relying on?

Accepted Answer

Electrical resistance increases with temperature.

Question 14

Which of the following is NOT a reference point used in defining temperature scales?

Accepted Answer

Melting point of gold

Question 15

A system is isolated and left alone. What will eventually happen to its bulk physical properties?

Accepted Answer

They will become uniform throughout the system and not change with time.

Question 16

Which formula is used to convert Fahrenheit to Celsius?

Accepted Answer

$$C = \frac{5}{9}(F - 32)$$

Question 17

Which thermometer would be unreliable below $$4\ \mathrm{K}$$?

Accepted Answer

Carbon resistance thermometer

Question 18

What is the main operational definition of temperature?

Accepted Answer

A measure of how hot or cold an object is.

Question 19

Which property of an ideal gas is used in a constant volume gas thermometer to construct a temperature scale?

Accepted Answer

Pressure

Question 20

Which of the following is true about systems in thermal equilibrium?

Accepted Answer

They have the same temperature.

Temperature and Thermal Equilibrium: Foundations and Measurement

Study Guide - Practice Questions