Mass Transfer
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Increase
Can either increase or decrease, depends on the system
Remain unchanged
Decrease

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Henry's law states that the

Vapour pressure is equal to the product of the mole fraction and total pressure
Partial pressure is equal to the product of the mole fraction and total pressure
Partial pressure of a component over a solution is proportional to the mole fraction in the vapour
Partial pressure of a component over a solution is proportional to its mole fraction in the liquid

ANSWER DOWNLOAD EXAMIANS APP