Mathematics: Atrundle wheel is used by surveyors to measure distances. it consits of a circular disc attached to a handle. one revolution of the wheel measures out exactly one metre. find the diameter of the wheel.

73.5 kJStep-by-step explanation:Mass of butane = 185 gHeat of vaporization for butane = 23.1 kJ/molMolar mass of butane = 58.12 g/molNumber of moles of butane = Energy required for burning 185 g of butane = 3.18×23.1 = 73.5 kJ∴ Energy is required to vaporize 185 g of butane at its boiling point is 73.5 kJ...

Atrundle wheel is used by surveyors to measure distances.

Ответ:

jenesis8

31.12.2021

Mathematics

I don't know the units so I'm guessing its centimeters, you can convert it when I'm done.
31.847133758 is the exact answer in centimeters, you can use that to convert the units to millimeters and such.

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Ответ:

kristenhernandez74

04.04.2022

Mathematics

73.5 kJ

Step-by-step explanation:

Mass of butane = 185 g

Heat of vaporization for butane = 23.1 kJ/mol

Molar mass of butane = 58.12 g/mol

Number of moles of butane = $\frac{\text{Mass of butane}}{\text{Molar mass of butane}}=\frac{185}{58.12}=3.18\ moles$

Energy required for burning 185 g of butane = 3.18×23.1 = 73.5 kJ

∴ Energy is required to vaporize 185 g of butane at its boiling point is 73.5 kJ

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Atrundle wheel is used by surveyors to measure distances. it consits of a circular disc attached to a handle. one revolution of the wheel measures out exactly one metre. find the diameter of the wheel.

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