Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Bound
Equilibrium
Unbound
Free

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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

2000
1500
2500
1000

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