HW question 8.67

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lorrainerowe_1K
Posts: 12
Joined: Wed Sep 21, 2016 2:56 pm

HW question 8.67

Postby lorrainerowe_1K » Mon Jan 16, 2017 12:49 pm

I am having trouble understanding the state of your substance when solving this problem. For part A, I don't understand how the H2O is in gas form and you need to convert into liquid by using the vaporization enthalpy. Why wasn't it liquid to begin with if your equation was H2 (g) + 1/2 O2 (g) --> H2O (l)
Thanks!

Nasir_Ahmed
Posts: 25
Joined: Wed Sep 21, 2016 2:58 pm

Re: HW question 8.67

Postby Nasir_Ahmed » Tue Jan 17, 2017 4:49 pm

I believe it isn't in the liquid state because the values given in tables 8.6 and 8.7 are for the compounds in the gaseous state. That is why we have to go through the process of subtracting it by the delta H of vaporization.


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