Mercury boils at $367^{o}$ . However, mercury thermometers are made such that they can measure temperature upto $500^{o}$ C. This is done by.

Maintaining vacuum above mercury column in the stem of the thermometer

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Filling nitrogen gas at high pressure above the mercury column

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Filling oxygen gas at high pressure above the mercury column

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Filling nitrogen gas at low pressure above the mercury column

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Solution

The correct option is A Filling nitrogen gas at high pressure above the mercury column
If we fill nitrogen gas at high pressure above mercury level, the boiling point of mercury is increased which can extend to the range upto $500^{o}$ (C).

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Similar questions

Q. Mercury boils at

356^{o}

C. However, mercury thermometers are made such that they can measure temperatures up to

500^{o}

C. This is done by :

Q. Mercury boils at

367^{o} C

. Mercury thermometers are made such that they can measure temperature up to

500^{o} C

. This done by

In a constant volume gas thermometer, the pressure of the working gas is measured by the difference in the levels of mercury in the two arms of a U-tube connected to the gas at one end. When the bulb is placed at the room temperature 27.0℃, the mercury column in the arm open to atmosphere stands 5.00 cms above the level of mercury in the other arm. When the bulb is placed in a hot liquid, the difference of mercury levels becomes 45.0 cms. Calculate the temperature of the liquid. (Atmospheric pressure = 75.0 cm of mercury.)

Q. In a constant volume gas thermometer the pressure of the working gas is measured by the difference in the level of mercury in the two arms of a U-tube connect to the gas at one end. When the bulb is placed at the room temperature

{27.0}^{\circ}

, the mercury column in the arm open to atmosphere stands 5.00 cm above the level of mercury in the other arm. When the bulb is placed in a hot liquid, the difference of mercury levels becomes 45.0 cm. Calculate the temperature(x+170)(

^{o} C

) of the liquid. Mark the value of x.(Atmospheric pressure = 75.0 cm of mercury.)

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Mercury boils at 367o. However, mercury thermometers are made such that they can measure temperature upto 500oC. This is done by.

The correct option is A Filling nitrogen gas at high pressure above the mercury columnIf we fill nitrogen gas at high pressure above mercury level, the boiling point of mercury is increased which can extend to the range upto 500o(C).

Mercury boils at $367^{o}$ . However, mercury thermometers are made such that they can measure temperature upto $500^{o}$ C. This is done by.

The correct option is A Filling nitrogen gas at high pressure above the mercury column
If we fill nitrogen gas at high pressure above mercury level, the boiling point of mercury is increased which can extend to the range upto $500^{o}$ (C).