What does the slope of P vs. 1/L tell us?

Can we use this to calculate the number of moles of air in the closed tube?

How would you calculate the number of moles of nitrogen?

How are the results affected by different room temperatures?

What are the applications of Boyle’s law?

What are the different kinds of manometers that are used in various experiments?

Why mercury is used in manometer? Can any other liquid be used?

Why is the shape of mercury surface different in both the columns?