In 1742, Anders Celsius was the first to propose a quantitative method for measuring temperatures. He defined the temperature scale, which we call in his honour the Celsius scale: in which T₀ is an arbitrary reference temperature, for example, the temperature at which the thermometer is filled with mercury. The term in the bracket is the fraction of the height change of the mercury column during a temperature change, and á_Hg is the coefficient of linear expansion of mercury. What is the unit of á_Hg?

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The Answer of In 1742, Anders Celsius was the first to propose a quantitative method for measuring temperatures. He defined the temperature scale, which we call in his honour the Celsius scale: in which T₀ is an arbitrary reference temperature, for example, the temperature at which the thermometer is filled with mercury. The term in the bracket is the fraction of the height change of the mercury column during a temperature change, and á_Hg is the coefficient of linear expansion of mercury. What is the unit of á_Hg?

In 1742, Anders Celsius Was the First to Propose a Quantitative