CBSE Class 11 (Science) Gas Laws — practice questions
51 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Gas Laws in the app →In which year was Boyle's law published?Boyle's law links pressure and volume of a fixed mass of gas at constant what?Torricelli's 1643 inverted mercury tube experiment paved the way for which instrument?Which French physicist independently reached Boyle's conclusions in 1676?Why does squeezing a gas into a smaller container raise its pressure?Charles' law, the law of volumes, was founded in which year?At constant pressure, the volume of a fixed mass of gas is directly proportional to its what?Who founded the pressure law in 1808, also known as Amontons' law?Who hypothesized in 1811 that gas volume relates to the amount of gas present?What is the approximate molar volume of a gas at STP (273.15 K, 1 atm)?The combined gas law merges which three laws?Which law, added to the combined gas law, gives the ideal gas law?What is the approximate value of the universal gas constant R in J per mol per K?The Boltzmann constant kB in SI units is about which value?When is the ideal gas law a good approximation?At constant temperature and pressure, gas volume is directly proportional to what?Thomas Graham formulated his law of effusion in which year?Per Graham, effusion rate is inversely proportional to what?Under equal conditions, how do H2 and O2 compare in effusion?If one gas has four times the molecular weight of another, how does it effuse relative to the lighter gas?Graham's law is most accurate for which process?Which compound was diffused through porous barriers at Oak Ridge to separate uranium isotopes?Whose observation of hydrogen leaking from a cracked glass bottle triggered Graham's diffusion work?Kelvin temperature is directly proportional to what molecular property?An unknown gas diffuses 0.25 times as fast as He (M = 4 g/mol). What is its molar mass?The pressure of a gas mixture equals the sum of the partial pressures. Whose law is this?Which law says the volume of a gas mixture is the sum of the partial volumes of its components?The amount of gas dissolved in a liquid is directly proportional to its partial pressure. Whose law is this?Diffusion rate is inversely proportional to the square root of what quantity at constant temperature?Who formulated the real gas law in 1873?Which 1738 work by Daniel Bernoulli laid the basis for the kinetic theory of gases?According to Bernoulli, what determines the temperature of a gas?Who introduced the concept of mean free path in 1857?Who formulated the Maxwell–Boltzmann distribution in 1871 by generalizing Maxwell's work?Einstein's 1905 paper on which phenomenon helped confirm kinetic theory?August Krönig's 1856 simple gas model considered only which motion of particles?In the ideal gas model, the total volume of the molecules is what compared to the container?Collisions between molecules in the kinetic theory of ideal gases are assumed to be what?Except during collisions, forces between ideal gas molecules are taken to be what?Why can kinetic theory use a statistical treatment of a gas?In kinetic theory, gas pressure arises from what?The mean free path of a molecule is the average distance travelled before what?Which Irish chemist showed experimental isotherms of carbonic acid in 1869?A sample at 2.0 atm occupies 6.0 L. Compressed isothermally to 3.0 L, what is the pressure?A balloon holds 2.0 L at 300 K. At constant pressure it is heated to 450 K. New volume?A sealed rigid tank at 1.0 atm and 300 K is heated to 600 K. Final pressure?At STP, what volume do 2.0 mol of an ideal gas occupy?Two gases in a vessel exert partial pressures of 0.40 atm and 0.35 atm. Total pressure?Gas X has molar mass 16 and gas Y has molar mass 64. How fast does X effuse relative to Y?A fixed gas sample at 1.0 atm, 3.0 L and 300 K goes to 2.0 atm and 400 K. New volume?Using PV = nRT with R = 0.0821 L atm/(mol K), pressure of 2.0 mol at 300 K in 10 L?