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An ideal gas is that which...

An ideal gas is that which

A

cannot be liquified

B

can be easily liquified

C

has strong inter molecular forces

D

has a larger size of molecules

Text Solution

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The correct Answer is:
To answer the question "An ideal gas is that which," we need to analyze the characteristics of an ideal gas based on the options provided. ### Step-by-Step Solution: 1. **Understanding Ideal Gas**: An ideal gas is a theoretical gas composed of many particles that are in constant random motion. It follows the gas laws perfectly under all conditions of temperature and pressure. 2. **Characteristics of Ideal Gas**: - Ideal gases do not have intermolecular forces acting between the particles. - The volume of the gas particles themselves is negligible compared to the volume of the container. - Ideal gases can be described by the Ideal Gas Law: \( PV = nRT \). 3. **Analyzing the Options**: - **Option 1: Cannot be liquefied**: This is consistent with the behavior of an ideal gas. Since there are no intermolecular forces, ideal gases do not condense into liquids under normal conditions. - **Option 2: Can be easily liquefied**: This is incorrect. Real gases can be liquefied, but ideal gases cannot. - **Option 3: Has strong intermolecular forces**: This is incorrect. Ideal gases are characterized by the absence of intermolecular forces. - **Option 4: Has a larger size of molecules**: This is also incorrect. Ideal gases are considered to have negligible size. 4. **Conclusion**: Based on the analysis, the correct answer is that an ideal gas is one that "cannot be liquefied," which corresponds to **Option 1**. ### Final Answer: An ideal gas is that which **cannot be liquefied**.
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