Answer:
1004kPa
Explanations
According to the dalton's law of partial pressure, the total pressure of by a gas is equal to the sum of its partial pressure
Given the following parameters
• Pressure of Oxygen = 287kPa
,
• Pressure of Nitrogen = 429kPa
If the pressure in container A is tripled, the new pressure will be:
New Pressure of Oxygen = 3(287) = 861kPa
If the pressure in B is reduced by one-third, then;
New Pressure of nitrogen = 429/3 = 143kPa
Pressure inside the container C = 861 + 143
Pressure inside the container C = 1004kPa
Hence the new pressure in the container C after the changes will be 1004kPa
The law above fits into the situation because it is a way of measuring a gas's partial pressure
