Mass Transfer
Design calculation for multiple component distillation is done by

Tray to tray calculations
Enthalpy concentration method
Mccabe-Thiele method
Ponchon-Savarit method

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is

1000
1500
2500
2000

ANSWER DOWNLOAD EXAMIANS APP