Pop Quiz Specific Heat Capacity

What is the formula for calculating specific heat capacity?

If 500 J of heat is added to a 2 kg block of metal, causing its temperature to increase by 5°C, what is the specific heat capacity of the metal?

• 25 J/kg°C

• 50 J/kg°C

• 100 J/kg°C

• 200 J/kg°C

Which of the following graphs best represents the relationship between heat added and temperature change for a substance with a constant specific heat capacity?

• A linear graph with a positive slope

• A linear graph with a negative slope

• A parabolic graph opening upwards

• A horizontal line

In a thermodynamic process, if the temperature of a gas remains constant, what type of process is it?

• Isobaric

• Isochoric

• Isothermal

• Adiabatic

A 3 kg sample of a substance requires 4500 J of energy to increase its temperature by 10°C. What is the specific heat capacity of the substance?

• 100 J/kg°C

• 150 J/kg°C

• 200 J/kg°C

• 300 J/kg°C

Which of the following statements is true about the specific heat capacity of water?

• It is lower than that of most metals.

• It is higher than that of most metals.

• It is the same as that of most metals.

• It varies significantly with temperature.

A graph shows the pressure vs. volume of a gas during an isothermal expansion. What can be inferred about the temperature of the gas during this process?

• The temperature increases.

• The temperature decreases.

• The temperature remains constant.

• The temperature fluctuates.

Which of the following is an application of specific heat capacity in everyday life?

• Designing thermal insulators

• Calculating gravitational force

• Measuring electric current

• Determining sound speed

A 5 kg block of ice at 0°C is heated until it becomes water at 0°C. If the specific heat capacity of ice is 2.1 J/g°C, how much heat is required to melt the ice completely?

• 1050 J

• 10500 J

• 105000 J

• 1050000 J

Which of the following best describes the concept of heat transfer in thermodynamics?

• The movement of particles from one place to another

• The transfer of energy due to temperature difference

• The conversion of mass into energy

• The increase in volume due to pressure