Calculate the amount of heat Q required to steam 2 kg of ether heated to the boiling point.
| September 28, 2021 | education
Calculate the amount of heat Q required to steam 2 kg of ether heated to the boiling point. The specific heat of vaporization of ether is 352 kJ / kg, the specific heat of combustion of alcohol is 27 MJ / kg.
m = 2 kg.
λ = 352 kJ / kg = 352 * 10 ^ 3 J / kg.
Q -?
The amount of thermal energy Q required for the transformation of a substance from a liquid state of aggregation into a gaseous one at the boiling point is determined by the formula: Q = λ * m, where λ is the specific heat of vaporization, m is the mass of the substance.
Q = 352 * 10 ^ 3 J / kg * 2 kg = 724 * 10 ^ 3 J.
Answer: to convert ether from liquid to vapor, you need Q = 724 * 10 ^ 3 J of thermal energy.
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