Wednesday, April 2, 2014

A simple enthalpy and heat problem

I was reviewing physical chemistry and I saw a problem where you are supposed to calculate the heat required to produce Mg2+(g) starting with 1.00 g Mg(s) at 25 C.

This is a simple problem and here is the solution.

The interesting part (for me) is that to learn this heat is almost same as the heat needed to vaporize 43 g of water. It's ~ 97.24 kJ.

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