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Question

A gas thermometer is more sensitive than a liquid thermometer because a gas _________.

A
is lighter than liquid
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B
expands more than a liquid
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C
is easy to obtain
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D
does not change state easily
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Solution

The correct option is B expands more than a liquid
Since gas expands much more than liquid on changing the temperature. Thus a gas thermometer is more sensitive than liquid thermometer as gas can expand more even in very small change in temperature. So the measurement has to be precised.

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