Use of water as a manometric liquid suffers from the disadvantage of its____________________?
Correct answer: B. High vapour pressure
- A. Low vapour pressure
- B. High vapour pressure
- C. Corrosive nature
- D. High boiling point
Explanation
Water has a relatively high vapour pressure compared with commonly used heavy manometric liquids such as mercury, increasing the risk of vapour effects and evaporation. Its low density is also a practical limitation, but high vapour pressure is the listed disadvantage.
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