Question

How can we derive the pressure of multiple molecules?

a) Summing up the individual pressures of each molecule

b) Dividing the total force by the number of molecules

c) Subtracting the temperature from the volume

d) Multiplying the volume by the number of molecules

Answer 1

The pressure of multiple molecules in a gas mixture is derived by summing up the individual pressures of each molecule, in accordance to Dalton's law of partial pressures.

Step-by-step explanation:

The correct method to derive the pressure of multiple molecules in a mixture is a) Summing up the individual pressures of each molecule. This is based on Dalton's law of partial pressures, which states that the total pressure of a gas mixture is the sum of the individual partial pressures. Each gas in a mixture exerts pressure as if it were the only gas in the volume, and these pressures simply add up to give the total pressure of the mixture.

The nature of the gas does not affect the calculation of its pressure; it only depends on the number of particles, volume, and temperature. If we know these, we can calculate the partial pressure of each gas, which is its pressure if it were the only gas present. Dalton's law applies when the gases behave ideally and do not chemically react with each other.