Start learning →

CBSE Class 11 (Science) Kinetic Theory & Oscillations — practice questions — page 3

Explore 180 free Kinetic Theory & Oscillations questions in CBSE Class 11 (Science) Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Kinetic Theory & Oscillations with Quill →

Kinetic Theory & Oscillations questions and exercises with answers

Showing questions 61–90 of 180.

John Dalton proposed his atomic theory mainly to explain which laws?Read the answer and worked solution →By Gay Lussac's law, combining gas volumes areRead the answer and worked solution →What is the approximate size of an atom?Read the answer and worked solution →How does the force between two atoms behave with separation?Read the answer and worked solution →What is the value of the Boltzmann constant in SI units?Read the answer and worked solution →How is the universal gas constant R related to the Boltzmann constant kB?Read the answer and worked solution →Under which conditions does a real gas behave most like an ideal gas?Read the answer and worked solution →A gas at 300 K is heated to 600 K at constant pressure. What happens to its volume?Read the answer and worked solution →A gas occupies 6 L at 2 atm. It is squeezed to 3 L at constant temperature. New pressure?Read the answer and worked solution →A mixture of 2 mol nitrogen and 3 mol argon has total pressure 10 atm. Partial pressure of nitrogen?Read the answer and worked solution →Which law adds partial pressures to give a mixture's total pressure?Read the answer and worked solution →Neon and oxygen in one vessel have partial pressures in the ratio 3:2. Ratio of their numbers of molecules?Read the answer and worked solution →In the kinetic theory of an ideal gas, collisions of molecules are assumed to beRead the answer and worked solution →A molecule of mass m and x-velocity vx rebounds elastically off a wall. Momentum change?Read the answer and worked solution →Which expression gives the pressure of an ideal gas from kinetic theory?Read the answer and worked solution →For an isotropic gas, the mean of vx² equals which fraction of the mean square speed <v²>?Read the answer and worked solution →Hydrogen of density 0.09 kg/m³ has rms speed 1840 m/s. What pressure does it exert?Read the answer and worked solution →What is the average translational kinetic energy of one molecule of an ideal gas at temperature T?Read the answer and worked solution →What is the rms speed of nitrogen molecules at 300 K, approximately?Read the answer and worked solution →At room temperature, molecular rms speeds in air are comparable toRead the answer and worked solution →If the absolute temperature of a gas becomes four times, its rms speedRead the answer and worked solution →At what temperature will O2 molecules have the same rms speed as H2 molecules at 300 K?Read the answer and worked solution →A gas is at 27 °C. To what temperature must it be heated to double its rms speed?Read the answer and worked solution →UF6 molecules with U-235 and U-238 have masses 349 u and 352 u. Ratio of their mean speeds?Read the answer and worked solution →A gas's diffusion rate varies with molecular mass m asRead the answer and worked solution →Why does a gas warm up when a piston is pushed in to compress it?Read the answer and worked solution →How many translational degrees of freedom does a molecule free to move in space have?Read the answer and worked solution →Molecules of a monatomic gas such as argon have which degrees of freedom?Read the answer and worked solution →A diatomic molecule treated as a rigid dumbbell has how many degrees of freedom in total?Read the answer and worked solution →Under equipartition, one vibrational mode of a molecule contributes what average energy?Read the answer and worked solution →

Worked practice questions

John Dalton proposed his atomic theory mainly to explain which laws?

  1. Laws of motion and of gravitation
  2. Laws of definite and multiple proportions
  3. Laws of reflection and of refraction
  4. Laws of heat flow and of radiation
Show answer and solution

Correct answer: B. Laws of definite and multiple proportions

Dalton used atoms to account for fixed mass ratios in compounds and small whole number mass ratios between compounds.

Open this question →

By Gay Lussac's law, combining gas volumes are

  1. always equal to one another
  2. in ratios of small whole numbers
  3. proportional to their molar masses
  4. inversely proportional to density
Show answer and solution

Correct answer: B. in ratios of small whole numbers

Gay Lussac observed that combining gas volumes stand in simple integer ratios.

Open this question →

What is the approximate size of an atom?

  1. About one nanometre
  2. About one angstrom
  3. About one femtometre
  4. About one micrometre
Show answer and solution

Correct answer: B. About one angstrom

Atomic sizes are of the order of 10^-10 m, which is one angstrom.

Open this question →

How to practise

  1. Choose a Kinetic Theory & Oscillations question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Kinetic Theory & Oscillations practice for CBSE Class 11 (Science). Read explanations as you go. No signup form needed to start.

Practise Kinetic Theory & Oscillations →

More Physics topics

Thermal Properties of Matter & ThermodynamicsMechanical Properties of Solids and FluidsSystem of Particles and Rotational MotionLaws of MotionGravitationWork, Energy and PowerMotion in a PlaneWaves