Temperature and Its Measurement

Question 1

What is the concept of temperature?

Answer 1

Temperature is a measure of the average kinetic energy of the particles in a substance, indicating how hot or cold the substance is.

Question 2

Q: How are thermometers calibrated?

Answer 2

A: Thermometers are calibrated by setting fixed points, such as the freezing and boiling points of water, and marking the scale on the thermometer accordingly.

Question 3

What are the temperature scales, and how do they differ?

Answer 3

The Celsius scale sets the freezing point of water at 0°C and the boiling point at 100°C, while the Kelvin scale starts at absolute zero (0 K), with 273.15 K corresponding to 0°C.

Question 4

What are the types of thermometers?

Answer 4

Types of thermometers include:

• liquid-in-glass thermometers
• digital thermometers
• infrared thermometers
• gas thermometers.

Question 5

How do you convert temperatures from one scale to another?

Answer 5

To convert from Celsius to Kelvin, add 273.15 to the Celsius temperature:
𝑇 (𝐾) = 𝑇 (°𝐶) +273.15
To convert from Kelvin to Celsius, subtract 273.15 from the Kelvin temperature:
𝑇 (°𝐶)= 𝑇(𝐾)−273.15