Gaseous state – Online MCQ test

Online MCQ test on gaseous state

– In this topic we offer you, online MCQ test in the fundmental of gaseous state .

– It is a simple test to measure the strength of your knowledge in the basics of understanding the topics of gaseous state.

– The test consists of only (20) questions (multiple choice) you must answer all of them so that your final score appears automatically at the top of the topic.

– you will pass the Exam If get 70% or more.

– If you fail the test, you can retake the test again by reloading the page

– Let’s start the test, good luck.

Starting the test of gaseous state

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``` Results - (adsbygoogle = window.adsbygoogle || []).push({}); Congratulation (adsbygoogle = window.adsbygoogle || []).push({}); Try again #1. The average velocity of a gas is given by _____ (a) (a) (b) (b) (c) (c) (d) (d) #2. For one mole of a gas the kinetic energy is given by ___ E = 1/2 RT E = 1/2 RT E = 3/2 RT E = 3/2 RT E = 5/2 RT E = 5/2 RT E = 7/2 RT E = 7/2 RT #3. The compressibility factor, z, for an ideal gas is ____ zero zero less than one less than one greater than one greater than one equal to one equal to one #4. Gas A diffuses twice as fast as another gas B. If the vapour density of the gas A is 2, the molecular mass of gas B is __ 2 2 4 4 8 8 16 16 #5. For one mole of a gas, the ideal gas equation is ____ PV = RT PV = RT PV = 1/2 RT PV = 1/2 RT PV = 3/2 RT PV = 3/2 RT PV = 5/2 RT PV = 5/2 RT #6. Which of the following gases will have the lowest rate of diffusion? H2 H2 N2 N2 F2 F2 O2 O2 #7. Which of the following gases will have the highest rate of diffusion? NH3 NH3 CH4 CH4 N2 N2 CO2 CO2 #8. 290 ml of a gas at 17°C is cooled to –13°C at constant pressure. The new volume of the gas will be 260 ml 260 ml 270 ml 270 ml 280 ml 280 ml 290 ml 290 ml #9. According to Gay Lussac’s law for a fixed volume of a given gas? P/T = a constant P/T = a constant P ∝ 1/T P ∝ 1/T P = k/T P = k/T PT = k PT = k #10. In van der Waal’s equation of state for a non-ideal gas the net force of attraction among the molecules is given by ____ (a) (a) (b) (b) (c) (c) (d) (d) #11. According to Boyle’s law the volume of a fixed mass of a gas, at constant temperature, is directly proportional to its pressure directly proportional to its pressure inversely proportional to its pressure inversely proportional to its pressure the square root of its pressure the square root of its pressure none of these none of these #12. If the pressure and absolute temperature of 3 litres of a gas are doubled, its volume would be ___ 2 litres 2 litres 3 litres 3 litres 6 litres 6 litres 12 litres 12 litres #13. The total pressure of a mixture of gases (non–reacting) is equal to the sum of the partial pressures of all the gases present” is the statement of ____ Graham’s law of diffusion Graham’s law of diffusion Dalton’s law of partial pressures Dalton’s law of partial pressures Avogadro’s law of partial pressures Avogadro’s law of partial pressures none of these none of these #14. Which of the following is the correct mathematical relation for Charle’s law at constant pressure? V ∝ T V ∝ T V ∝ t V ∝ t V = kt V = kt none of these none of these #15. The mass of 2240 ml of CO2 at NTP will be _____ 4.0 g 4.0 g 4.4 g 4.4 g 8.8 g 8.8 g 8.0 g 8.0 g #16. A gas is heated at constant temperature. Then ____ the no. of molecules of the gas increases the no. of molecules of the gas increases the kinetic energy of the gas molecules decreases the kinetic energy of the gas molecules decreases the kinetic energy of the gas molecules remains unaltered the kinetic energy of the gas molecules remains unaltered the kinetic energy of the gas molecules increases the kinetic energy of the gas molecules increases #17. Equal volume of all gases at the same temperature and pressure contain equal number of molecules” is the statement of _____ combined gas law combined gas law Charle’s law Charle’s law Avogadro’s law Avogadro’s law Boyle’s law Boyle’s law #18. The value of γ , the specific heat ratio, for a monoatomic gas is _____ 1.40 1.40 1.667 1.667 1.33 1.33 0 0 #19. The free path is the distance travelled by the molecule ____ after collision after collision before collision before collision in one second in one second in one minute in one minute #20. The real gases show nearly ideal behaviour at _____ low pressures and low temperatures low pressures and low temperatures high pressures and low temperatures high pressures and low temperatures high pressures and high temperatures high pressures and high temperatures low pressures and high temperatures low pressures and high temperatures Finish ```
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