NEET Chemistry States Of Matter Online Test Set C

1. van der Waal's real gas acts as an ideal gas, at which conditions?

2. By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?

3. A certain gas takes three times as long to effuse out as helium. Its molecular mass will be

4. Maximum deviation from ideal gas is expected from

5. Dipole-induced dipole interactions are present in which of the following pairs

6. Equal masses of H₂, O₂ and methane have been taken in a container of volume V at temperature 27°C in identical conditions. The ratio of the volumes of gases H₂: O₂: methane would be

7. The slope of the graph between log P and log V at constant temperature for a given mass of a gas is

8. If the ratio of C_P and C _Vfor a gas is 1.4. The number of atoms present in 11.2 litre of it at STP is

9. At constant volume, pressure and temperature are related as (T₀= STP temp.)

10. At high temperature and low pressure van der Waal's equation can be expressed as

11. If for the gases, the critical temperature are mentioned below i.e., Which of the following can be predicted?

12. Three lines at three different values of constant pressure are given, which of the following relation is correct?

13. The rate of diffusion of a gas having molecular weight just double of hydrogen gas is 30 ml s^-1. The rate of diffusion of hydrogen gas will be

14. van der Waal's constant 'a' and 'b' are related with _____ respectively

15. Which of the following is not correct in case of kinetic theory of gases?

16. Temperature above which gas behave ideally over a wide range of pressure is called as

17. For a given mass of a gas, if pressure is reduced to half and temperature is increased two times then the final volume would become (V = initial volume)

18. Which of the following is incorrect for pressure units?

19. The Critical temperature, Boyle's temperature and Inversion temperature respectively are given as

20. Density of gaseous mixture A and B from percentage volume is given as

21. The mixture of three gases X, Y and Z is enclosed in a closed vessel at constant temperature. Molecular weight of X is the highest and that of Y is the least. When equilibrium is established the

22. Which of the following has maximum number of molecules?

23. The root mean square velocity of an ideal gas at constant pressure varies with density as

24. At constant volume for a fixed number of a moles of a gas, the pressure of the gas increases with the rise in temperature due to

25. A gas in a vessel is heated in such a way that its pressure and volume both become two times. The temperature of the gas expressed in Kelvin scale becomes

26. A sample of gas contains N₁ molecules and the total kinetic energy at-123°C is E₁ ergs. Another sample of gas at 27°C has total kinetic energy as 2E₁ ergs. Assuming gases to be ideal, the number of gas molecules in the second sample will be

27. In what ratio by mass, the gases CO and 2 butene (C₄H₈) be mixed in a vessel so that they cause same partial pressures?

28. Molar mass of certain gas A is half that of B. If rms speed of molecules of A at certain temperature is 200ms^-1. The rms speed of B at the temperature half that of A will be

29. When the temperature of certain sample of a gas is changed from 30°C to 606 K and its pressure is reduced to half, the volume of gas changes from V to V². The value of V is

30. The compressibility of a gas is less than unity at STP. Therefore,