Normal mercury thermometer can be used to measure a tempe... — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by__________________?

Correct answer: A

Explanation

Pressurizing the stem with nitrogen increases the pressure inside. This higher pressure allows the liquid to expand and measure temperatures up to a higher limit.

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