Stoichiometry - Engineering

Q1:

°API gravity of water at N.T.P. is about

A 0

B 1

C 10

D 100

ANS:C - 10

The API gravity of water at standard conditions (N.T.P. - Normal Temperature and Pressure) is approximately 10 °API. API gravity is a measure of the density of petroleum liquids relative to the density of water. Water has an API gravity of around 10, while denser substances have API gravities greater than 10 and lighter substances have API gravities less than 10.