Gas Laws
Physics ⇒ Heat and Thermodynamics
Gas Laws starts at 9 and continues till grade 12.
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See sample questions for grade 9
Describe what happens to the volume of a gas if its temperature is decreased while pressure is kept constant.
Explain why gases are easily compressible.
Explain why the Kelvin scale is used in gas law calculations instead of Celsius.
If the temperature of a gas is increased at constant volume, what happens to its pressure?
A gas occupies 8 L at 300 K and 1.5 atm. If the gas is compressed to 4 L and the temperature is increased to 600 K, what is the final pressure?
A gas sample is transferred from a 2 L container at 3 atm to a 6 L container at the same temperature. What is the final pressure of the gas?
A mixture of three gases exerts a total pressure of 2 atm in a container. If the partial pressures of the first two gases are 0.5 atm and 1.2 atm, what is the partial pressure of the third gas?
A sealed container holds a fixed amount of gas at 400 K and 2 atm pressure. If the temperature is decreased to 200 K while the volume remains constant, what will be the new pressure of the gas?
Which law relates the pressure and temperature of a gas at constant volume? (1) Boyle's Law (2) Charles's Law (3) Gay-Lussac's Law (4) Avogadro's Law
Which law states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules? (1) Boyle's Law (2) Avogadro's Law (3) Charles's Law (4) Dalton's Law
Which of the following is NOT a gas law? (1) Boyle's Law (2) Charles's Law (3) Newton's Law (4) Gay-Lussac's Law
Which of the following is NOT a property of an ideal gas? (1) No intermolecular forces (2) Infinite volume (3) Elastic collisions (4) Negligible volume of molecules
Fill in the blank: According to Charles's Law, V₁/T₁ = ________.
Fill in the blank: At constant pressure, the volume of a gas is directly proportional to its ________.
Fill in the blank: The ideal gas equation is ________.
Fill in the blank: The number of molecules in one mole of a gas is called ________'s number.
True or False: According to Charles's Law, the volume of a gas increases as the temperature increases, provided pressure is constant.
True or False: At constant temperature, increasing the volume of a gas decreases its pressure.
True or False: The ideal gas law can be used for all gases under all conditions.
True or False: The kinetic energy of gas molecules increases with temperature.
