the enthalpy for boiling water is 40.7 kj/mol. what is the quantity of heat (in kj) required to boil 250.1 g of water?



Answer :

3476.39 KJ, heat is required to boil 250.1 g of water .

In the given question we have following information,

  • Enthalpy for boiling water is 40.7 KJ/mol
  • mass of water is 250.1 g

As we know that,

Molar mass of water = 18.0 g/mol

Now, firstly we convert the mass of water to moles by using molar mass ,

moles of water = mass of water / molar mass of water

moles of water = 250.1 g/18.0 g/mol = 13.89moles = 13.9 moles of water

We can find out required heat to 250.1 g of water by using the heat of vaporization or enthalpy for boliling water.

Required heat to boil 250.1 g of water = 13.9 moles of water × 40.7 KJ/mole of water = 3476.39KJ

To learn more about heat , refer:

https://brainly.com/question/10704479

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