soledad11 soledad11
  • 04-07-2018
  • Chemistry
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How much heat is required to vaporize 33.8 g of water at 100 degrees Celsius

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PBCHEM
PBCHEM PBCHEM
  • 13-07-2018

Answer : Heat required will be 76.42 KJ


Explanation : Here we have the data as 33.8 g of water and temperature is 100°C


To calculate the heat required we need to use the formula as,


q= mol of water / heat of vaporization of water.


So we have convert the mass into moles,


33.8g / 18g = 1.877 moles of water.


and heat of vaporization is 40.7 KJ


Now, q = 1.877 X 40.7 KJ = 76.4 KJ


So the heat required will be 76.4 KJ

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