(B) The boiling point of a liquid increases with an increase in external pressure. By filling the space above the mercury column with an inert gas lik

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Filling nitrogen gas at high pressure above the mercury column

(B) The boiling point of a liquid increases with an increase in external pressure. By filling the space above the mercury column with an inert gas like nitrogen at high pressure,the boiling point of mercury is raised significantly above its normal boiling point of $367^{\circ}C$. This allows the thermometer to measure temperatures up to $500^{\circ}C$ without the mercury boiling.

Class 11 Physics 10-1.Thermometry, Thermal Expansion and Calorimetry Temperature and Temperature scales

Easy

Mercury boils at $367^{\circ}C$. However,mercury thermometers are made such that they can measure temperatures up to $500^{\circ}C$. This is achieved by:

A
Maintaining a vacuum above the mercury column in the stem of the thermometer
B
Filling nitrogen gas at high pressure above the mercury column
C
Filling nitrogen gas at low pressure above the mercury level
D
Filling oxygen gas at high pressure above the mercury column

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10-1.Thermometry, Thermal Expansion and Calorimetry

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Temperature and Temperature scales

The study of physical phenomena at low temperatures (below liquid nitrogen temperature) is called:

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On the Celsius scale,the temperature of a body increases by $40^{\circ} C$. The increase in temperature on the Fahrenheit scale is: (in $^{\circ} F$)

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The temperature of a body on the Kelvin scale is found to be $x \ K$. When it is measured by a Fahrenheit thermometer,it is found to be $x \ ^\circ F$. Then the value of $x$ is:

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Explain the study of thermal properties of matter by giving definitions of temperature and heat.

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The temperature of a substance increases by $27^{\circ}C$. On the Kelvin scale,this increase is equal to ........ $K$.

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Mercury boils at $367^{\circ}C$. However,mercury thermometers are made such that they can measure temperatures up to $500^{\circ}C$. This is achieved by:

Similar Questions

The study of physical phenomena at low temperatures (below liquid nitrogen temperature) is called:

On the Celsius scale,the temperature of a body increases by $40^{\circ} C$. The increase in temperature on the Fahrenheit scale is: (in $^{\circ} F$)

The temperature of a body on the Kelvin scale is found to be $x \ K$. When it is measured by a Fahrenheit thermometer,it is found to be $x \ ^\circ F$. Then the value of $x$ is:

Explain the study of thermal properties of matter by giving definitions of temperature and heat.

The temperature of a substance increases by $27^{\circ}C$. On the Kelvin scale,this increase is equal to ........ $K$.

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