Specific heat capacity and latent heat

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius.

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What is latent heat of fusion?

Back

Latent heat of fusion is the amount of heat energy required to change a substance from solid to liquid at its melting point without changing its temperature.

Front

Why does sand heat up faster than water?

Back

Sand has a lower specific heat capacity than water, meaning it requires less energy to increase its temperature.

Front

What is the relationship between mass and thermal energy?

Back

Thermal energy is directly proportional to the mass of the substance; larger masses contain more thermal energy at the same temperature.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change, even though heat energy is being added or removed.

Front

What is latent heat of vaporization?

Back

Latent heat of vaporization is the amount of heat energy required to change a substance from liquid to gas at its boiling point without changing its temperature.

Front

How does the specific heat capacity of water compare to that of metals?

Back

Water has a high specific heat capacity compared to most metals, meaning it can absorb more heat without a significant change in temperature.

Front

What is the formula for calculating heat energy?

Back

The formula is Q = mcΔT, where Q is heat energy, m is mass, c is specific heat capacity, and ΔT is the change in temperature.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat energy, meaning they are at the same temperature.

Front

How does the kinetic energy of molecules relate to temperature?

Back

The average kinetic energy of molecules in a substance increases as the temperature increases.