The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kJ/kg. The amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kJ/kg. One kg of each substance is currently at its boiling point.
How will the amount of thermal energy required to change each substance from a liquid to a gas differ?
How will the amount of thermal energy required to change each substance from a liquid to a gas differ?
Neither water nor mercury will require any energy to change from liquid to gas as long as they are each at their boiling temperatures.
Water will require a greater amount of energy to change from liquid to gas than mercury.
Water and mercury will require the same amount of energy to change from liquid to gas.
Mercury will require a greater amount of energy to change from liquid to gas than water.
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