Behaviour of Real Gases
CHXI06:STATES OF MATTER

314061 Refer to the figure given and identify the correct statement.
(In all options, 'a' and 'b' are Van der Waals constant)
supporting img

1 For gas \(\mathrm{\mathrm{A}, \mathrm{a}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
2 Gas \(\mathrm{\mathrm{C}}\) is a real gas and we can find ' \(\mathrm{a}\) ' and ' \(\mathrm{b}\) ' if intersection data is given
3 All van der Waal gases will behave like gas \(\mathrm{\mathrm{C}}\) and give positive slope at high pressure
4 For gas \(\mathrm{\mathrm{B}, \mathrm{b}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
CHXI06:STATES OF MATTER

314062 The compressibility factor for definite amount of van der Waals' gas at \({\mathrm{0^{\circ} \mathrm{C}}}\) and 100 atm is found to be 0.5 . Assuming the volume of gas molecules negligible, the van der Waals' constant \({\mathrm{a}}\) for a gas is ____ .

1 1.256
2 12.56
3 125.6
4 1256
CHXI06:STATES OF MATTER

314080 The inversion temperature \(\left(\mathrm{T}_{\mathrm{i}}\right)\) for a gas is given by

1 \(\mathrm{a} / \mathrm{Rb}\)
2 \(2 \mathrm{a} / \mathrm{Rb}\)
3 \(\dfrac{\mathrm{Rb}}{\mathrm{a}}\)
4 \(\dfrac{2 \mathrm{Rb}}{\mathrm{a}}\)
CHXI06:STATES OF MATTER

314066 A gas at \(\mathrm{350 \mathrm{~K}}\) and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor \({\rm{(Z)}}\) is :

1 \(\mathrm{Z>1}\) and attractive forces are dominant
2 \(\mathrm{Z>1}\) and repulsive forces are dominant
3 \(\mathrm{Z < 1}\) and attractive forces are dominant
4 \(\mathrm{\mathrm{Z} < 1}\) and repulsive forces are dominant
CHXI06:STATES OF MATTER

314067 The density of vapour of a substance \(\mathrm{(X)}\) at 1 \(\mathrm{\mathrm{atm}}\) pressure and \(\mathrm{500 \mathrm{~K}}\) is \(\mathrm{0.8 \mathrm{~kg} / \mathrm{m}^{3}}\). The vapour effuses through a small hole at a rate of \(\mathrm{4 / 5}\) times slower than oxygen under the same condition. What is the compressibility factor \(\mathrm{(\mathrm{Z})}\) of the vapour?

1 0.974
2 1.35
3 1.52
4 1.22
CHXI06:STATES OF MATTER

314061 Refer to the figure given and identify the correct statement.
(In all options, 'a' and 'b' are Van der Waals constant)
supporting img

1 For gas \(\mathrm{\mathrm{A}, \mathrm{a}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
2 Gas \(\mathrm{\mathrm{C}}\) is a real gas and we can find ' \(\mathrm{a}\) ' and ' \(\mathrm{b}\) ' if intersection data is given
3 All van der Waal gases will behave like gas \(\mathrm{\mathrm{C}}\) and give positive slope at high pressure
4 For gas \(\mathrm{\mathrm{B}, \mathrm{b}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
CHXI06:STATES OF MATTER

314062 The compressibility factor for definite amount of van der Waals' gas at \({\mathrm{0^{\circ} \mathrm{C}}}\) and 100 atm is found to be 0.5 . Assuming the volume of gas molecules negligible, the van der Waals' constant \({\mathrm{a}}\) for a gas is ____ .

1 1.256
2 12.56
3 125.6
4 1256
CHXI06:STATES OF MATTER

314080 The inversion temperature \(\left(\mathrm{T}_{\mathrm{i}}\right)\) for a gas is given by

1 \(\mathrm{a} / \mathrm{Rb}\)
2 \(2 \mathrm{a} / \mathrm{Rb}\)
3 \(\dfrac{\mathrm{Rb}}{\mathrm{a}}\)
4 \(\dfrac{2 \mathrm{Rb}}{\mathrm{a}}\)
CHXI06:STATES OF MATTER

314066 A gas at \(\mathrm{350 \mathrm{~K}}\) and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor \({\rm{(Z)}}\) is :

1 \(\mathrm{Z>1}\) and attractive forces are dominant
2 \(\mathrm{Z>1}\) and repulsive forces are dominant
3 \(\mathrm{Z < 1}\) and attractive forces are dominant
4 \(\mathrm{\mathrm{Z} < 1}\) and repulsive forces are dominant
CHXI06:STATES OF MATTER

314067 The density of vapour of a substance \(\mathrm{(X)}\) at 1 \(\mathrm{\mathrm{atm}}\) pressure and \(\mathrm{500 \mathrm{~K}}\) is \(\mathrm{0.8 \mathrm{~kg} / \mathrm{m}^{3}}\). The vapour effuses through a small hole at a rate of \(\mathrm{4 / 5}\) times slower than oxygen under the same condition. What is the compressibility factor \(\mathrm{(\mathrm{Z})}\) of the vapour?

1 0.974
2 1.35
3 1.52
4 1.22
CHXI06:STATES OF MATTER

314061 Refer to the figure given and identify the correct statement.
(In all options, 'a' and 'b' are Van der Waals constant)
supporting img

1 For gas \(\mathrm{\mathrm{A}, \mathrm{a}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
2 Gas \(\mathrm{\mathrm{C}}\) is a real gas and we can find ' \(\mathrm{a}\) ' and ' \(\mathrm{b}\) ' if intersection data is given
3 All van der Waal gases will behave like gas \(\mathrm{\mathrm{C}}\) and give positive slope at high pressure
4 For gas \(\mathrm{\mathrm{B}, \mathrm{b}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
CHXI06:STATES OF MATTER

314062 The compressibility factor for definite amount of van der Waals' gas at \({\mathrm{0^{\circ} \mathrm{C}}}\) and 100 atm is found to be 0.5 . Assuming the volume of gas molecules negligible, the van der Waals' constant \({\mathrm{a}}\) for a gas is ____ .

1 1.256
2 12.56
3 125.6
4 1256
CHXI06:STATES OF MATTER

314080 The inversion temperature \(\left(\mathrm{T}_{\mathrm{i}}\right)\) for a gas is given by

1 \(\mathrm{a} / \mathrm{Rb}\)
2 \(2 \mathrm{a} / \mathrm{Rb}\)
3 \(\dfrac{\mathrm{Rb}}{\mathrm{a}}\)
4 \(\dfrac{2 \mathrm{Rb}}{\mathrm{a}}\)
CHXI06:STATES OF MATTER

314066 A gas at \(\mathrm{350 \mathrm{~K}}\) and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor \({\rm{(Z)}}\) is :

1 \(\mathrm{Z>1}\) and attractive forces are dominant
2 \(\mathrm{Z>1}\) and repulsive forces are dominant
3 \(\mathrm{Z < 1}\) and attractive forces are dominant
4 \(\mathrm{\mathrm{Z} < 1}\) and repulsive forces are dominant
CHXI06:STATES OF MATTER

314067 The density of vapour of a substance \(\mathrm{(X)}\) at 1 \(\mathrm{\mathrm{atm}}\) pressure and \(\mathrm{500 \mathrm{~K}}\) is \(\mathrm{0.8 \mathrm{~kg} / \mathrm{m}^{3}}\). The vapour effuses through a small hole at a rate of \(\mathrm{4 / 5}\) times slower than oxygen under the same condition. What is the compressibility factor \(\mathrm{(\mathrm{Z})}\) of the vapour?

1 0.974
2 1.35
3 1.52
4 1.22
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CHXI06:STATES OF MATTER

314061 Refer to the figure given and identify the correct statement.
(In all options, 'a' and 'b' are Van der Waals constant)
supporting img

1 For gas \(\mathrm{\mathrm{A}, \mathrm{a}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
2 Gas \(\mathrm{\mathrm{C}}\) is a real gas and we can find ' \(\mathrm{a}\) ' and ' \(\mathrm{b}\) ' if intersection data is given
3 All van der Waal gases will behave like gas \(\mathrm{\mathrm{C}}\) and give positive slope at high pressure
4 For gas \(\mathrm{\mathrm{B}, \mathrm{b}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
CHXI06:STATES OF MATTER

314062 The compressibility factor for definite amount of van der Waals' gas at \({\mathrm{0^{\circ} \mathrm{C}}}\) and 100 atm is found to be 0.5 . Assuming the volume of gas molecules negligible, the van der Waals' constant \({\mathrm{a}}\) for a gas is ____ .

1 1.256
2 12.56
3 125.6
4 1256
CHXI06:STATES OF MATTER

314080 The inversion temperature \(\left(\mathrm{T}_{\mathrm{i}}\right)\) for a gas is given by

1 \(\mathrm{a} / \mathrm{Rb}\)
2 \(2 \mathrm{a} / \mathrm{Rb}\)
3 \(\dfrac{\mathrm{Rb}}{\mathrm{a}}\)
4 \(\dfrac{2 \mathrm{Rb}}{\mathrm{a}}\)
CHXI06:STATES OF MATTER

314066 A gas at \(\mathrm{350 \mathrm{~K}}\) and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor \({\rm{(Z)}}\) is :

1 \(\mathrm{Z>1}\) and attractive forces are dominant
2 \(\mathrm{Z>1}\) and repulsive forces are dominant
3 \(\mathrm{Z < 1}\) and attractive forces are dominant
4 \(\mathrm{\mathrm{Z} < 1}\) and repulsive forces are dominant
CHXI06:STATES OF MATTER

314067 The density of vapour of a substance \(\mathrm{(X)}\) at 1 \(\mathrm{\mathrm{atm}}\) pressure and \(\mathrm{500 \mathrm{~K}}\) is \(\mathrm{0.8 \mathrm{~kg} / \mathrm{m}^{3}}\). The vapour effuses through a small hole at a rate of \(\mathrm{4 / 5}\) times slower than oxygen under the same condition. What is the compressibility factor \(\mathrm{(\mathrm{Z})}\) of the vapour?

1 0.974
2 1.35
3 1.52
4 1.22
CHXI06:STATES OF MATTER

314061 Refer to the figure given and identify the correct statement.
(In all options, 'a' and 'b' are Van der Waals constant)
supporting img

1 For gas \(\mathrm{\mathrm{A}, \mathrm{a}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
2 Gas \(\mathrm{\mathrm{C}}\) is a real gas and we can find ' \(\mathrm{a}\) ' and ' \(\mathrm{b}\) ' if intersection data is given
3 All van der Waal gases will behave like gas \(\mathrm{\mathrm{C}}\) and give positive slope at high pressure
4 For gas \(\mathrm{\mathrm{B}, \mathrm{b}=0}\) and \(\mathrm{\mathrm{Z}}\) will linearly depend on pressure
CHXI06:STATES OF MATTER

314062 The compressibility factor for definite amount of van der Waals' gas at \({\mathrm{0^{\circ} \mathrm{C}}}\) and 100 atm is found to be 0.5 . Assuming the volume of gas molecules negligible, the van der Waals' constant \({\mathrm{a}}\) for a gas is ____ .

1 1.256
2 12.56
3 125.6
4 1256
CHXI06:STATES OF MATTER

314080 The inversion temperature \(\left(\mathrm{T}_{\mathrm{i}}\right)\) for a gas is given by

1 \(\mathrm{a} / \mathrm{Rb}\)
2 \(2 \mathrm{a} / \mathrm{Rb}\)
3 \(\dfrac{\mathrm{Rb}}{\mathrm{a}}\)
4 \(\dfrac{2 \mathrm{Rb}}{\mathrm{a}}\)
CHXI06:STATES OF MATTER

314066 A gas at \(\mathrm{350 \mathrm{~K}}\) and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor \({\rm{(Z)}}\) is :

1 \(\mathrm{Z>1}\) and attractive forces are dominant
2 \(\mathrm{Z>1}\) and repulsive forces are dominant
3 \(\mathrm{Z < 1}\) and attractive forces are dominant
4 \(\mathrm{\mathrm{Z} < 1}\) and repulsive forces are dominant
CHXI06:STATES OF MATTER

314067 The density of vapour of a substance \(\mathrm{(X)}\) at 1 \(\mathrm{\mathrm{atm}}\) pressure and \(\mathrm{500 \mathrm{~K}}\) is \(\mathrm{0.8 \mathrm{~kg} / \mathrm{m}^{3}}\). The vapour effuses through a small hole at a rate of \(\mathrm{4 / 5}\) times slower than oxygen under the same condition. What is the compressibility factor \(\mathrm{(\mathrm{Z})}\) of the vapour?

1 0.974
2 1.35
3 1.52
4 1.22