ET unit 7 -- Dalton's Law

Front

What is Dalton's Law of Partial Pressures?

Back

Dalton's Law states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of each individual gas.

Front

How do you calculate the total pressure of a gas mixture?

Back

Add the partial pressures of all gases in the mixture.

Front

What is the partial pressure of a gas?

Back

The partial pressure of a gas is the pressure that gas would exert if it occupied the entire volume alone.

Front

What is the formula for Dalton's Law?

Back

P_total = P1 + P2 + P3 + ... + Pn, where P_total is the total pressure and P1, P2, P3, ..., Pn are the partial pressures of the individual gases.

Front

Why is Dalton's Law important in real-life applications?

Back

It helps in understanding gas behavior in various fields such as chemistry, meteorology, and engineering.

Front

What happens to the total pressure if one gas is removed from a mixture?

Back

The total pressure decreases, as it is the sum of the remaining gases' partial pressures.

Front

What is the relationship between gas pressure and temperature?

Back

As temperature increases, the kinetic energy of gas particles increases, leading to higher pressure if the volume is constant.

Front

What is the significance of the number of particles in a gas?

Back

The number of particles affects the pressure; more particles result in more collisions with the container walls, increasing pressure.

Front

How does altitude affect gas pressure?

Back

At higher altitudes, the atmospheric pressure decreases due to the lower density of air, affecting the partial pressures of gases.

Front

What is the average kinetic energy of gas particles related to?

Back

It is directly related to the temperature of the gas; higher temperatures mean higher average kinetic energy.