Answer:
The partial pressure of the carbon dioxide is 3,3 kPa.
Explanation:
We apply Dalton's law, according to which the sum of the partial pressures of the gases that make up a gaseous mixture is equal to the total pressure of this:
Ptotal = P N2 + P C02 + P 02
32, 9 kPa= 23, 0 kPa + P C02 + 6, 6Kpa
P C02= 32, 9 kPa - 23, 0 kPa - 6, 6Kpa= <em>3, 3 kPa</em>