The volume of the balloon at 85.0°C would be 2.3L
Answer:c
Explanation:because the light is hitting the Earth straight on without a slant or without all the light, it is the most direct
The free energy change(Gibbs free energy-ΔG)=-8.698 kJ/mol
<h3>Further explanation</h3>
Given
Ratio of the concentrations of the products to the concentrations of the reactants is 22.3
Temperature = 37 C = 310 K
ΔG°=-16.7 kJ/mol
Required
the free energy change
Solution
Ratio of the concentration : equilbrium constant = K = 22.3
We can use Gibbs free energy :
ΔG = ΔG°+ RT ln K
R=8.314 .10⁻³ kJ/mol K

I’m pretty sure it’s in a group (column) of the period table. Hope this helps :)))