# A group of students place a 0.045 kg water sample, initial temperature 21.5 degrees Celsius, on...

###### Question:

A group of students place a 0.045 kg water sample, initial temperature 21.5 degrees Celsius, on a heat source. The water is then warmed up to its boiling point then further heated until it is completely evaporated. Note: Both the heat source and the water are in a thermally isolated container.

i. Find the total heat absorbed by the water during this process.

ii. A similar experiment is performed on an unknown liquid, mass=0.055kg with initial temperature 21.5 degrees Celsius. During the experiment, the unknown liquid absorbs a total of 2.03x10^4 J to completely evaporate the liquid. Note: The specific heat for the unknown liquid is 1130J/kg*K and its boiling point temperature is 110.5 degrees Celsius. Determine the latent heat of vaporization for this liquid.

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