NCERT Class XI Chemistry States of Matter Solutions
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Question : 21
Total: 23
In terms of Charles’ law explain why –273°C is the lowest possible temperature.
Solution:
According to Charles’ law,
Volume of gas at t°C,V t V 0 [ 1 +
] V 0
Volume of gas at –273°C, V =V 0 [ 1 −
]
Thus, –273°C is the lowest possible temperature because below this temperature, the volume will become negative, and that is meaningless. This lowest temperature is called absolute zero temperature.
Volume of gas at t°C,
Volume of gas at –273°C, V =
Thus, –273°C is the lowest possible temperature because below this temperature, the volume will become negative, and that is meaningless. This lowest temperature is called absolute zero temperature.
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