Heat and Heat Calculations

What is specific heat capacity?

• The amount of heat required to freeze a substance

• Amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius

• The amount of heat required to boil a substance

• The amount of cold required to lower the temperature of a substance

How does heat transfer occur?

• Through friction, tension, and compression.

• Through precipitation, evaporation, and condensation.

• Through photosynthesis, respiration, and fermentation.

• Through conduction, convection, and radiation.

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NGSS.HS-PS3-4

What is the process of phase change?

• The process of phase change involves the transition of a substance from gas to solid

• The process of phase change involves the transition of a substance from liquid to plasma

• The process of phase change involves the transition of a substance from solid to gas

• The process of phase change involves the transition of a substance from one state of matter to another.

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What is the formula for calculating heat of fusion?

• Q = m * Cp * ΔT

• Q = m * g * h

• Q = m * Lf

• Q = m * c * ΔT

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What is the formula for calculating heat of vaporization?

• q = m * ΔHfus

• q = m * ΔT

• q = m * ΔHvap

• q = m * c * ΔT

What is the specific heat capacity of water?

• 5.00 J/g°C

• 2.50 J/g°C

• 4.18 J/g°C

• 3.75 J/g°C

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How is heat transfer different in solids, liquids, and gases?

• Radiation in solids, conduction in liquids, and convection in gases

• Conduction in solids, convection in liquids, and convection/radiation in gases

• Convection in solids, conduction in liquids, and convection in gases

• Conduction in liquids, convection in solids, and radiation in gases

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NGSS.MS-PS3-4

What is the heat required to change 1 kg of ice at 0°C to water at 0°C?

• 100,000 J/kg

• 500,000 J/kg

• 1,000,000 J/kg

• 334,000 J/kg

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NGSS.HS-PS3-4

What is the heat required to change 1 kg of water at 100°C to steam at 100°C?

• 1500 kJ

• 500 kJ

• 2260 kJ

• 100 kJ

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NGSS.HS-PS3-4

How does specific heat capacity affect the temperature change of a substance?

• It affects the temperature change by determining how much heat energy is required to raise the temperature of a substance.

• It has no effect on the temperature change

• It causes the temperature to decrease

• It only affects the color of the substance