Properties of Gas

1. At constant temperature, the pressure of a given amount of gas is inversely proportional to its volume. This law is—

2.At constant temperature, if the volume of a gas is decreased, its pressure—

3. At constant temperature, if the pressure of a gas is made three times, its volume will become—

4. At a given temperature, for a fixed amount of gas, the value of Pressure / Density remains constant. This conclusion is obtained from which law?

6.At constant pressure, the volume of a gas is directly proportional to its absolute temperature. This law is

Consider the following statements—

1. In Boyle’s Law, temperature remains constant.
2. In Charles’s Law, pressure remains constant.
3. In Avogadro’s Law, both temperature and pressure remain constant.

9.Which of the following is not a gas law?

10.The relationship between temperature and pressure of a gas at constant volume is explained by which law?

Consider the following statements—

1. Boyle’s Law defines the relationship between the volume and pressure of a gas at constant temperature.
2. With the help of Boyle’s Law, the relationship between pressure and density of a gas can be established.

Which of the above statements is/are correct?

12.Which law states that “At constant pressure, the volume of an ideal gas is directly proportional to its absolute temperature”?

13. "Under the same temperature and pressure, equal volumes of all gases contain the same number of molecules." This law is— 

14.Under the same temperature and pressure, in equal volumes of different gases, the number of what is the same?

14.Under the same temperature and pressure, in equal volumes of different gases, the number of what is the same?

15.According to Avogadro’s hypothesis, at standard temperature and pressure, all gases have equal—

22.In the gas equation $PV=RT$, $R$ represents—

23.In the gas equation $PV=RT$, the value of the gas constant $R$ depends on—

25.All gases attain zero volume at—

26.The value of absolute zero is—

27.Absolute zero is—

28.Which is called the absolute scale of temperature?

29. Consider the following statements:

1. Absolute zero temperature is a temperature at which the volume of all gases becomes zero.
2. The volume of any gas does not become zero at absolute zero because at that temperature the gas gets converted into a liquid or solid.

Which of the above statement(s) is/are correct?

30.When pressure is applied to or a gas is compressed—

31. Which of the following is not a property of an ideal gas?

32.The energy of an ideal gas depends on –

Consider the following statements—

1. A real gas does not obey $PV=nRT$.
2. A real gas follows the van der Waals equation of state.
3. All known gases are real gases.
   Which of the above statements are correct?
   

33.Under which conditions does a real gas behave like an ideal gas?

35. In the equation PV=RT, which term was modified by van der Waals to derive the equation for real gases?

37. “The total pressure of a mixture of non-interacting gases is equal to the sum of the partial pressures of each gas.” This gas law is –

38.Who gave the law of diffusion of gases?

39. The natural process by which gases mix with each other against the force of gravity, even when their densities are different, is called—

40. “At constant temperature and pressure, the relative rates of diffusion of different gases are inversely proportional to the square root of their densities.” This law is –

41. According to Graham’s law of diffusion, the rate of diffusion of gases is –

42. Consider the statements:

1. At constant temperature, increasing pressure decreases the rate of diffusion of gases.
2. Pressure and temperature have no effect on the rate of diffusion of gases.

Which statement(s) is/are correct?

43 For diffusion of gases, it is necessary that between the gases the chemical reaction—

45 If a bottle of perfume is left open in a corner of a room, its fragrance spreads throughout the room. This is due to –

46. The law of diffusion of gases is used –

47.What will be the ratio of diffusion rates of oxygen and hydrogen gases?

48.The vapor densities of hydrogen and oxygen are 1 and 16, respectively. What will be the ratio of the diffusion rates of hydrogen to oxygen?

49.Why is the diffusion rate of CO₂ slower compared to air?

50“The actual volume of a gas molecule is negligible.” This statement is in accordance with –

51. In PV=nRT, what is the value of the gas constant R in calorie units?

52.The relationship between vapor density and molecular mass of a gas is –

53. If the vapor density of a gas is 14, what is its molecular mass?

The kinetic energy of a gas is proportional to –

54.The vapor density of gas A is four times that of gas B. If the molecular mass of B is $M$, what will be the molecular mass of A?

56.Which of the following gases is lighter than air?

57.Gases can be liquefied by –

58.In whose experiment on CO₂ was the critical phenomenon discovered, according to which each gas has a critical temperature above which it cannot be liquefied, no matter how much pressure is applied?

59.What is the critical temperature of CO₂?

Who first proposed the kinetic theory of gases?

61. A gas occupies 2 L at 800 mm pressure and 20 °C. What will be its volume at the same temperature but 500 mm pressure?

62.A gas occupies 200 mL at 798 mm pressure. If the temperature is kept constant and the pressure is reduced to 760 mm, what will be the volume of the gas?

63.A sample of a gas occupies 100 dm³ at 0 °C and 1 bar pressure. At constant temperature, what additional pressure is required to reduce its volume to 5 dm³?

A gas occupies 100 mL at 20 °C. If the pressure is kept constant and the temperature is raised to 40 °C, what will be its volume?

A balloon contains 2 L of gas at 25 °C. It is taken to a place where the temperature is 30 °C. What will be the volume of gas in the balloon if the pressure is the same at both places?

At what temperature will the volume of a gas, taken at 0 °C, double if the pressure is constant?

67.A kitchen gas cylinder can be kept up to 14.9 bar pressure. At 27 °C, the cylinder pressure reads 12 bar. If the temperature rises suddenly due to a fire in the building, at what temperature will the cylinder burst?

A gas occupies 300 mL at 27 °C and 750 mm pressure. What will be its volume at standard temperature and pressure (STP)?

Calculate the volume of 1 mole of oxygen at 27 °C and 2 atm. The molar volume of oxygen at STP is 22.4 L.

What is the volume of 22 g of CO₂ at NTP?

71.

71. What is the volume of 16 g of oxygen at NTP?

72.

72. The volume of 1 gram-molecule (mole) of any gas at NTP is –

73. What is the volume of 10 g of hydrogen at NTP?

74. What is the volume of 28 g of nitrogen at NTP?