16/12/2019Kinetic Theory of Matter (STUDY BY TOPICS JUNIOR CLASS) 0Comments by Gate Academy Welcome to your Kinetic Theory of Matter (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. All matter is made of tiny particles called elements atoms properties mass2. When matter changes from a liquid to a solid, it evaporates freezes condenses melts3. Since atoms can join together in many different ways there are many different kinds of matter there are few different kinds of matter most matter is in the liquid state most matter is in the gaseous state4. Everything that takes up space and has mass is gas matter liquid solid5. Heat flow though states of matter by the following except convection radiation conduction cohesion6. You want to demonstrate the phenomenon of diffusion to a group of school kids using two coloured gases. For this, you need to slow down the process. Which of the following tricks will help you achieve this feat? All of the mentioned Decreasing the size of orifice Cooling the gases Using gases of larger molecular radii7. In steady state diffusion, which of the following remain unchanged with time? Concentration profile All of mentioned Concentration at source Concentration at sink8. Diffusion is the result of: All of the mentioned Concentration gradient Kinetic energy of particles Random motion of particles9. A person's mass is best measured in atoms kilometres kilograms celsius10. Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will ________ Remain the same Decreases for some, while the increase for others Increase Decrease11. Osmosis is different from diffusion as: Osmosis is a form of active transport Diffusion requires semi-permeable membrane Osmosis requires a liquid solvent In osmosis, solute moves from lower concentration to higher12. A characteristic of an object (matter) is called a property mass behaviour particle state13. Liquid evaporates faster at high pressure low pressure no pressure medium pressure14. On which factor does the average kinetic energy of gas molecules depend? Nature of the gas Volume Temperature Mass15. The rate of evaporation as temperature increases the same decreases increases remains normal16. Which of the following is not true for steady-state diffusion? The concentration profile is linear There is no net transfer of mass The concentration gradient is constant The diffusion flux is constant17. What type of motion is associated with the molecules of gas? Linear motion Conservative motion Brownian motion Newton’s law of motion18. In which state(s) of matter do the particles move least freely? Solid Gas Both solid and liquid Liquid19. The change from a liquid to a gas is called condensation freezing melting evaporation20. Which state of matter has the highest kinetic force solid gaseous liquid fluid21 out of 20Time is Up!