Q:

What is a high heat of vaporization?

A:

The heat of vaporization is the amount of energy that is required to convert a substance from liquid to gaseous state without changing its temperature. A substance with a high heat of evaporation takes longer to transform between the two states.

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The heat of evaporation is mainly dependent on the strength of intermolecular bonds. Substances with strong intermolecular bonds are more likely to have high heat of evaporation than those with weaker ones. When a substance reaches its boiling point, its temperature stagnates until all the substance is converted to a gas. All the heat energy exerted on the substance is used for breaking the intermolecular bonds. This is where the relationship between the heat of evaporation and intermolecular bond strength arises.

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Related Questions

• A:

The formula for calculating thermal energy is Q = mcΔT, where "Q" represents the thermal energy, "m" indicates the substance's mass, "c" denotes the specific heat and "ΔT" signifies the temperature difference. Thermal energy is typically measured in Joules, commonly abbreviated as "J."

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• A:

The specific heat capacity of a metal (or any other substance) is the amount of heat energy required to increase the temperature of 1 kilogram of the metal by 1 degree Celsius. This typically is measured in joules per kilogram per degree Celsius.

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• A:

Specific heat capacity is a measure of how much energy must be added to a specific amount of a substance in order to raise its temperature by a single degree. While the units of specific heat capacity can be freely converted as needed, the most common units are joules per gram per degree Celsius, written as J/g*C.