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For a gas at 273 K and 20 at m, molar volume is 20 percent greater than that for an ideal gas under similar conditions. The correct statement about the gas and its compressibility factor (Z) is 
  • a)
    Z > 1 and repulsive forces are dominant
  • b)
    Z < 1 and repulsive forces are dominant
  • c)
    Z > 1 and attractive forces are dominant
  • d)
    Z < 1 and attractive forces are dominant
Correct answer is option 'A'. Can you explain this answer?
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For a gas at 273 K and 20 at m, molar volume is 20 percent greater tha...

∴ Repulsive forces are dominantant 
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Most Upvoted Answer
For a gas at 273 K and 20 at m, molar volume is 20 percent greater tha...
Is less than 1, indicating that the gas is less compressible than an ideal gas.
b)Z is greater than 1, indicating that the gas is more compressible than an ideal gas.
c)Z is equal to 1, indicating that the gas behaves like an ideal gas.
d)It is not possible to determine the compressibility factor of the gas based on the given information.

Answer: b) Z is greater than 1, indicating that the gas is more compressible than an ideal gas.

Explanation: The molar volume of the gas is 20% greater than that for an ideal gas under similar conditions, which means that the gas molecules have a larger volume and are more likely to interact with each other. This results in a higher compressibility factor (Z) than that of an ideal gas, which has a Z value of 1. Therefore, option b is the correct statement about the gas and its compressibility factor.
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For a gas at 273 K and 20 at m, molar volume is 20 percent greater tha...
Answer: Compressibility factor=>Z=Vreal/Videal
According to the Question Real nature is 20percent greater than Ideal Then Z is Eventually greater than 1
And Real nature dominates Ideal nature and Real nature favours Repulsive forces
Then Repulsive forces are Dominant
Therefore Z>1and Repulsive Forces are Dominant
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Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. The particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. This statement explains

Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. When Van der Waals forces are greater than forces due to the surface charge on the particles,

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For a gas at 273 K and 20 at m, molar volume is 20 percent greater than that for an ideal gas under similar conditions. The correct statement about the gas and its compressibility factor (Z) isa)Z > 1 and repulsive forces are dominantb)Z < 1 and repulsive forces are dominantc)Z > 1 and attractive forces are dominantd)Z < 1 and attractive forces are dominantCorrect answer is option 'A'. Can you explain this answer?
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For a gas at 273 K and 20 at m, molar volume is 20 percent greater than that for an ideal gas under similar conditions. The correct statement about the gas and its compressibility factor (Z) isa)Z > 1 and repulsive forces are dominantb)Z < 1 and repulsive forces are dominantc)Z > 1 and attractive forces are dominantd)Z < 1 and attractive forces are dominantCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about For a gas at 273 K and 20 at m, molar volume is 20 percent greater than that for an ideal gas under similar conditions. The correct statement about the gas and its compressibility factor (Z) isa)Z > 1 and repulsive forces are dominantb)Z < 1 and repulsive forces are dominantc)Z > 1 and attractive forces are dominantd)Z < 1 and attractive forces are dominantCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a gas at 273 K and 20 at m, molar volume is 20 percent greater than that for an ideal gas under similar conditions. The correct statement about the gas and its compressibility factor (Z) isa)Z > 1 and repulsive forces are dominantb)Z < 1 and repulsive forces are dominantc)Z > 1 and attractive forces are dominantd)Z < 1 and attractive forces are dominantCorrect answer is option 'A'. Can you explain this answer?.
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