Physics
Give two reasons for the use of mercury as a barometric liquid.
Fluids Pressure
56 Likes
Answer
Uses of mercury as a barometric liquid are —
- The vapour pressure of mercury is negligible, so the vapours in the torricellian vacuum does not affect the barometric height.
- Mercury neither wets nor sticks to the glass tube, therefore it gives accurate reading.
Answered By
38 Likes
Related Questions
How will you show there is vacuum above the surface of mercury in a barometer? What name is given to this vacuum ?
Give two reasons why water is not a suitable barometric liquid.
Why is the barometric height used as a unit to express the atmospheric pressure ?
State two advantages of an aneroid barometer over a simple barometer.