Question:
Identify false statement about real gas from following .
Identify false statement about real gas from following .
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A real gas has attractions between molecules, so it can be liquefied by cooling and compression.
Updated On: Nov 12, 2026
- It obeys Boyle's \(\&\) Charles' law at low pressure and high temperature.
- Its molecules are not perfectly elastic.
- In real gas, intermolecular attraction is present.
- It can not liquify even at low temperature.
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
A real gas behaves ideally only at low pressure and high temperature.
Step 2: Check each statement
Real gases obey Boyle's and Charles' laws at low pressure and high temperature, so that statement is true.
Their molecules are not perfectly elastic and have intermolecular attractions, so those statements are true.
Step 3: The false statement
Because of attractions, a real gas can be liquefied when cooled (below its critical temperature) and compressed.
So saying it cannot be liquefied even at low temperature is false.
Final Answer:
The statement that a real gas cannot be liquefied even at low temperature is false. \[ \boxed{\text{(D) }\text{It can not liquify even at low temperature.}} \]
A real gas behaves ideally only at low pressure and high temperature.
Step 2: Check each statement
Real gases obey Boyle's and Charles' laws at low pressure and high temperature, so that statement is true.
Their molecules are not perfectly elastic and have intermolecular attractions, so those statements are true.
Step 3: The false statement
Because of attractions, a real gas can be liquefied when cooled (below its critical temperature) and compressed.
So saying it cannot be liquefied even at low temperature is false.
Final Answer:
The statement that a real gas cannot be liquefied even at low temperature is false. \[ \boxed{\text{(D) }\text{It can not liquify even at low temperature.}} \]
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