Question

In the “Méthode Champenoise,” grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is

Fermentation of 873 mL grape juice (density is 1.0 g/cm^3 ) is allowed to take place in a bottle with a total volume of 921 mL until 16% by volume is ethanol (C2H3OH). Assuming that CO2 obeys Henry’s law, calculate the partial pressure of CO2 in the gas phase and the solubility of CO2 in the wine at 25°C. The Henry’s law constant for CO2 is 3.1 x 10^-2 mol/L ⋅ atm at 25°C with Henry’s law in the form C=kP, where C is the concentration of the gas in mol/L. (The density of ethanol is 0.79 g/cm^3 .)

(Enter your answers to two significant figures.)

Partial pressure =  atm

Solubility =  M

Answer 1

Solution