Mr. K. Physics - Thermodynamics Pt 1

What is specific heat capacity?

• The amount of heat required to raise the temperature by 1º C for 1 kg of a substance

• The amount of work required to raise the temperature by 1º C for 1 kg of a substance

• The amount of heat required to maintain equilibrium at 1º C for 1 kg of a substance

• The amount of work required to lower the temperature by 1º C for 1 kg of a substance

What is the SI unit for specific heat?

• J/kg•ºC

• N/m²

• Q

• J•ºC

Which of the following is the specific heat capacity (cₚ) equation?

• cₚ = Q/mΔT

• Q = mΔT

• cₚ = mΔT/Q

• cₚ = mgh

Which of the following is an alternate form of the specific heat capacity (cₚ) equation?

• cₚ = mΔT/Q

• cₚ = cₚmΔT

• Q = cₚmΔT

• Q = mΔT/cₚ

Suppose each of the following metals absorbs 100 J of energy. Which of the following metals will show the greatest increase in temperature?

• Mercury - cₚ = 1.38 x 10²

• Steam - cₚ = 2.01 x 10³

• Copper - cₚ = 3.87 x 10²

• Silver - cₚ = 2.01 x 10³

Suppose each of the following substances absorbs 100 J of energy. Which of the following substances will show the least increase in temperature?

• Lead - cₚ = 1.28 x 10²

• Glass - cₚ = 8.37 x 10²

• Iron - cₚ = 4.48 x 10²

• Water - cₚ = 4.186 x 10³

What is a calorimeter?

• An insulated cup with water used to determine the specific heat capacity of a substance

• An insulated cup with lead used to determine the specific heat capacity of a substance

• A thermometer used to measure the phase change temperatures of a substance

• An insulated cup with water used to determine the amount of calories of a substance

True or False: When discussing conservation of energy, Q = -Q

• True

• False

What is latent heat?

• heat gained or lost during phase changes

• heat gained due to an increase in work

• heat gained or lost due to a difference in temperatures

• heat lost due to a lateness in work

What is phase change?

• the physical change of a substance from one state to another

• the potential change of a substance from one state to another

• the chemical change of a substance from one state to another

• the difference in temperature of a substance from one state to another