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Statement 1 : Critical temperature is th...

Statement 1 `:` Critical temperature is the temperature at which a real gas exhibits ideal behaviour for considerable range of pressure.
Statement 2 `:` At critical point the densities of a substance in gaseous and liquid states are same.

A

Statement 1 is true, statement 2 is true , statement 2 is a correct explanation for statement 1

B

Statement 1 is true, statement 2 is true, statement 2 is Not a correct explanation for statement 1.

C

Statement 1 is true, statement 2 is false

D

Statement 1 is false , statement 2 is true.

Text Solution

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The correct Answer is:
To analyze the statements provided in the question, we will break down each statement and evaluate their correctness based on the principles of the gaseous state in chemistry. ### Step 1: Understanding Critical Temperature **Statement 1:** "Critical temperature is the temperature at which a real gas exhibits ideal behaviour for a considerable range of pressure." - **Analysis:** Critical temperature (Tc) is defined as the temperature above which a gas cannot be liquefied, regardless of the pressure applied. While gases may behave more ideally at high temperatures and low pressures, the critical temperature itself does not specifically indicate that a real gas exhibits ideal behavior over a range of pressures. Therefore, this statement is **incorrect**. ### Step 2: Understanding the Critical Point **Statement 2:** "At the critical point, the densities of a substance in gaseous and liquid states are the same." - **Analysis:** At the critical point, the distinction between the liquid and gaseous phases disappears. This means that the densities of the liquid and gas become equal at this point. Therefore, this statement is **correct**. ### Conclusion: - **Statement 1** is incorrect. - **Statement 2** is correct. ### Final Answer: - Statement 1 is false, and Statement 2 is true. ---

To analyze the statements provided in the question, we will break down each statement and evaluate their correctness based on the principles of the gaseous state in chemistry. ### Step 1: Understanding Critical Temperature **Statement 1:** "Critical temperature is the temperature at which a real gas exhibits ideal behaviour for a considerable range of pressure." - **Analysis:** Critical temperature (Tc) is defined as the temperature above which a gas cannot be liquefied, regardless of the pressure applied. While gases may behave more ideally at high temperatures and low pressures, the critical temperature itself does not specifically indicate that a real gas exhibits ideal behavior over a range of pressures. Therefore, this statement is **incorrect**. ### Step 2: Understanding the Critical Point ...
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