Question

define boiling point. give two fecture on which it depends. why in food cooked quickly in pressure cooker.

Answer 1

boiling point of liquid  is defined as when vapor pressure of liquid becomes equal to external  pressure surrounding the liquid and it depends on atmospheric pressure and food is cooked quickly in cooker pressure because the trapped steam increases the atmospheric pressure in cooker by 15 pounds per square and at that pressure temperature  is increased and this is because of increased temperature that food is cooked quickly