Question : An eudiometer measures
Option 1: atmospheric pressure
Option 2: time
Option 3: volume of gases
Option 4: vapour pressure
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Correct Answer: volume of gases
Solution : The correct option is the volume of gases.
The volume of a gas mixture changes after a physical or chemical change, and a eudiometer is a laboratory instrument that monitors this change. It typically comes in two sizes, 50 mL and 100 mL, and in general, it resembles a graduated cylinder. The bottom end is submerged in water or mercury, while the top end is closed. In the cylinder, the liquid catches a sample of gas, and the graduation makes it possible to calculate the volume of the gas.
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Question : The molecular mass of a gas is:
Option 1: twice its vapour pressure
Option 2: equal to its vapour pressure
Option 3: half its vapour pressure
Option 4: not related to its vapour pressure
Question : At the boiling point of liquids, its
Option 1: temperature increases
Option 2: atmospheric pressure increases
Option 3: temperature remains constant
Option 4: vapour pressure decreases
Question : The boiling point of water depends upon the:
Option 2: volume
Option 3: density
Option 4: mass
Question : The Beaufort scale is used to measure:
Option 1: Atmospheric pressure
Option 2: Altitudes of mountains
Option 3: Wind velocity
Option 4: Intensity of earthquakes
Question : Which of the following greenhouse gases is most abundant in the atmosphere?
Option 1: Nitrous oxide
Option 2: Water vapour
Option 3: Methane
Option 4: Carbon oxide
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