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Assertion : The lowest hypothetical or i...

Assertion : The lowest hypothetical or imaginary temperature at which gases are supposed to occupy zero volume is called absolute zero .
Reason : Volume of the gas at `-273 . 15 C^(@)` becomes zero i.e. gas does not exist at this temperature .

A

If both assertion and reason are true and reason is the correct explanation of assertion .

B

If both assertion and reason are true but reason is not the correct explanation of assertion .

C

If assertion is true but reason is false .

D

If both assertion and reason are false .

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason about absolute zero, we can break it down step by step: ### Step 1: Understand the Assertion The assertion states that "The lowest hypothetical or imaginary temperature at which gases are supposed to occupy zero volume is called absolute zero." - **Explanation**: Absolute zero is defined as the point at which the motion of particles theoretically comes to a complete stop. At this temperature, the gas particles would have no kinetic energy, and thus, they would occupy zero volume. ### Step 2: Understand the Reason The reason provided is "Volume of the gas at -273.15°C becomes zero; i.e., gas does not exist at this temperature." - **Explanation**: The temperature -273.15°C is equivalent to 0 Kelvin, which is absolute zero. At this temperature, the gas particles are motionless, leading to the conclusion that they do not occupy any volume, hence gas does not exist in a conventional sense. ### Step 3: Analyze the Relationship Now we need to evaluate if the reason supports the assertion. - The assertion correctly defines absolute zero, and the reason explains that at this temperature, gases do not exist because their volume becomes zero. Thus, the reason supports the assertion. ### Step 4: Conclusion Both the assertion and the reason are true, and the reason is indeed the correct explanation of the assertion. ### Final Answer: Both assertion and reason are true, and the reason is the correct explanation of the assertion. ---
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