Answer: 75 kPa
Explanation: According to Dalton's law, the total pressure of a mixture of gases is the sum of individual pressures exerted by the constituent gases.
\(p_{total}=p_A+p_B+p_C\)
Thus \(p_{total}=p_{CO_2}+p_{SO2}+p_{H_2O}\)
Given:
\(p_{CO_2}=25kPa\)
\(p_{SO_2}=25kPa\)
\(p_{H_2O}= 25kPa\)
Thus \(p_{total}=25Pa+25kPa+25kPa\)
\(p_{total}=75kPa\)
Thus the pressure of mixture of gases is 75 kPa.
