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Gaseous State

15 questions · Chemistry · JEE Advanced
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Gaseous State

15 questions · Chemistry · JEE Advanced

  1. Molar volume (Vm) of a van der Waals gas can be calculated by expressing the van der Waals equation as a cubic equation with Vm as the variable. The ratio (in mol dm−3) of the coefficient of Vm2 to the coefficient of Vm for a gas having…2025 · Shift 1 · Q10 · Numerical
  2. A closed vessel contains 10 g of an ideal gas X at 300 K, which exerts 2 atm pressure. At the same temperature, 80 g of another ideal gas Y is added to it and the…2024 · Shift 1 · Q1 · MCQ
  3. A gas has a compressibility factor of 0.5 and a molar volume of 0.4 dm3 mol−1 at a temperature of 800 K and pressure x atm. If it shows ideal gas behaviour at the same temperature and…2023 · Shift 1 · Q9 · Numerical
  4. If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively, is Includes diagram2020 · Shift 1 · Q1 · MCQ
  5. Aluminium reacts with sulphuric acid to form aluminium sulphate and hydrogen. What is the volume of hydrogen gas in litre (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminium and 50.0 mL of 5.0 M sulphuric acid are combined…2020 · Shift 1 · Q16 · Numerical
  6. The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased 4 times and its pressure is increased 2 times. As a result, the diffusion coefficient of…2016 · Shift 1 · Q5 · Numerical
  7. One mole of a monoatomic real gas satisfies the equation p(V − b) = RT where b is a constant. The relationship of interatomic potential V(r) and interatomic distance r for the gas is given by2015 · Shift 2 · Q18 · Multiple correct
  8. An ideal gas in thermally insulated vessel at internal pressure = p1, volume = V1 and absolute temperature = T1 expands irreversibly against zero external pressure, as shown in the diagram. The final internal pressure, volume and absolute… Includes diagram2014 · Shift 1 · Q14 · Multiple correct
  9. For one mole of a van der Waals gas when b = 0 and T = 300 K, the PV vs. 1/V plot is shown below. The value of the van der Waals constant a (atm L2 mol − 2) is Includes diagram2012 · Shift 1 · Q11 · MCQ
  10. According to kinetic theory of gases2011 · Shift 1 · Q3 · Multiple correct
  11. To an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mol of He and 1.0 mol of an unknown compound (vapour pressure 0.68 atm, at 0oC) are introduced. Considering the ideal gas behaviour, the total volume (in…2011 · Shift 1 · Q4 · Numerical
  12. The term that corrects for the attractive forces present in a real gas in the van der Waals equation is2009 · Shift 1 · Q3 · MCQ
  13. At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is ​.2009 · Shift 2 · Q13 · Numerical
  14. A gas described by van Der Waals equation2008 · Shift 1 · Q11 · Multiple correct
  15. Match gases under specified conditions listed in Column I with their properties/laws in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS. Includes table2007 · Shift 1 · Q22 · MCQ