Gas Laws
12 past-paper questions on Gas Laws · examined 2020–2025.
20257 questions
Four gases are listed. 1 CH4 2 NH3 3 CO2 4 N2 What is the order of their rate of diffusion at room temperature and pressure?
10 cm3 of hydrogen gas is mixed with x cm3 of chlorine gas. The equation for the reaction that takes place is shown. All the hydrogen reacts. The total volume of gas at the end of the reaction is 40 cm3. What is the value of x?
Separate samples of water and air each have a volume of 30 cm3 at room temperature and pressure. The pressure applied to both samples is increased by the same amount at room temperature. Which row describes the volumes at the increased pressure?
Separate samples of water and air each have a volume of 30 cm3 at room temperature and pressure. The pressure applied to both samples is increased by the same amount at room temperature. Which row describes the volumes at the increased pressure?
Why does a balloon full of helium gas become smaller as the temperature changes from 30 °C to 10 °C?
Why does a balloon full of helium gas become smaller as the temperature changes from 30 °C to 10 °C?
100 cm3 of ethene is completely combusted in 400 cm3 of oxygen. The volumes of both gases are measured at r.t.p. What is the final volume of gas in the mixture measured at r.t.p.?
20241 question
A sample of chlorine has a volume of 240 cm3 at room temperature and pressure. The pressure of the sample is increased at room temperature. Describe and explain, in terms of kinetic particle theory, what happens to the volume of the sample.
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