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

Question

Mercury boils at 367°C . However, mercury thermometers are made such that they can measure temperature upto 500°C . This is done by (A) maintaining vacuum above mercury column in the stem of the thermometer (B) filling nitrogen gas at high pressure above the mercury column (C) filling oxygen gas at high pressure above the mercury column (D) filling nitrogen gas at low pressure above the mercury column

Tardigrade Admin · Accepted Answer

If we fill nitrogen gas at high pressure above mercury level, the boiling point of mercury is increased which can extend the range upto 500°C.

Q. Mercury boils at $36 7^{\circ} C$ . However, mercury thermometers are made such that they can measure temperature upto $50 0^{\circ} C$ . This is done by

maintaining vacuum above mercury column in the stem of the thermometer

filling nitrogen gas at high pressure above the mercury column

filling oxygen gas at high pressure above the mercury column

filling nitrogen gas at low 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 the range upto $50 0^{\circ} C$ .

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