# A 0.867 kg sample of ethanol is in its liquid state at its boiling temperature of 78 C. If 1.93e5 J of energy are transferred into the sample, what percentage of the sample is vaporized?ethanol has:a specific heat of 1000 J/kgK in solid form,a specific heat of 2010 J/kgK in liquid form,a freezing temperature of –114 Ca boiling temperature of 78 C,a latent heat of fusion of 1.05e5 J/kg, anda latent heat of vaporization of 8.54e5 J/kg

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A 0.867 kg sample of ethanol is in its liquid state at its boiling temperature of 78 C. If 1.93e5 J of energy are transferred into the sample, what percentage of the sample is vaporized?
ethanol has:
a specific heat of 1000 J/kgK in solid form,
a specific heat of 2010 J/kgK in liquid form,
a freezing temperature of –114 C
a boiling temperature of 78 C,
a latent heat of fusion of 1.05e5 J/kg, and
a latent heat of vaporization of 8.54e5 J/kg
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Step 1

Consider an ethanol of mass m having latent heat of vaporization Lv and Qgiven is the amount of heat is given to the sample.

Step 2

Write the formula for heat(Qrequired) required to change its state to vapour from liquid of the entire ethanol and plug the required values to find it.

Step 3

Since, the heat given(Qgiven) to the substance is less than the heat required(Qrequired), therefore, only certain amount of substance change its state fr...

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