BMST Thermodynamics and Heat Transfer

Question 1

What is the formula to convert a temperature from Celsius to Fahrenheit?

Accepted Answer

°F = (°C × 9/5) + 32

Answer

°F = (°C + 32) × 5/9

Answer

°F = °C × 5/9 + 32

Answer

°F = (°C − 32) × 9/5

Question 2

What is absolute zero in Celsius?

Accepted Answer

−273°C

Answer

0°C

Answer

−100°C

Answer

−459°C

Question 3

Which method of heat transfer requires no medium and can travel through a vacuum?

Accepted Answer

Radiation

Answer

Conduction

Answer

Convection

Answer

Evaporation

Question 4

When a substance changes from liquid to gas, what happens to the temperature during the phase change (at constant pressure)?

Accepted Answer

It remains constant

Answer

It increases steadily

Answer

It decreases

Answer

It fluctuates unpredictably

Question 5

A metal rod expands when heated. This is an example of:

Accepted Answer

Thermal expansion

Answer

Thermal conductivity

Answer

Specific heat capacity

Answer

Convection

Question 6

If 500 J of heat is added to 1 kg of water (specific heat = 4,200 J/kg·°C), by approximately how much does the temperature rise?

Accepted Answer

0.12°C

Answer

1.2°C

Answer

12°C

Answer

0.012°C