How much water is present in the tube?

Question

A 5m long vertical tube having cross sectional area 200 cm² is placed in a water. It is filled with 15⁰C water, with the bottom closed and the top open to 100kpa atmosphere. How much water is present in the tube ?

Answer 1

We know that Mass = Volume x density

m = (A x H).\(\rho\) 

m = 200 x 10^-4 x 5 x 997

m = 997 x 10^-1

m = 99.7 kg