The answer would be: C. 160.3 J/mol*K
To solve this question, you need to know the equation for Gibbs free energy formula. Entropy is expressed as delta S. The temperature would be expressed as T. Don't forget that temperature use Kelvin as unit, not Celsius
The formula would be:
G= H- T*S
130.5 kJ/mol= 178.3kJ/mol - (25+273.15K)*S
(298.15K)*S=178.3kJ/mol - 130.5 kJ/mol
S= (47.8kJ/mol)/ 298.15K=
S= 0.1603 kJ/mol*K= 160.3 J/mol*K ------> 1kJ= 1000J
Humans.
Humans have mass and take up space. :)
Hope this helps!
The answer to your questions is as follows:
most soluble
>CH3CH2OH
>CH3OCH3
>CH3CH3
<span>least soluble
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
From the balanced equation for this reaction:
2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s)
so from this balanced equation, we can know that:
2 moles of Al react with 1 mole of FeO3 to give 850 Kj
So the energy is given by 10 mol of Al should be calculated from
2 mol Al → -850 KJ
10 mol Al→ ???
and it is obvious that as the number of moles increases so the energy will be higher.
∴ ΔH°rxn= -850 kj * 10 mol of Al / 2 mol of Al
= -4250 KJ
