Question

regular cooking in vessels open to atmosphere takes long time in mountain.therefore ,cooking in pressure cookers is advised.now,answer the following question:(a)why does cooking in vessels open to atmoshere take long time in mountain ?(b)why does cooking in pressure cooker take less time?(c)name any other advantage of using pressure cooker instead of cooking in open vessels?

Answer 1

Ans a) Cooking vessels open to atmosphere take longer time because the atmospheric pressure in mountains is low.
Ans b) Cooking in pressure takes less time because the pressure cooker is exerting more pressure on something that your going to cook
Ans c)Another advantage is that something that your cooking in it will boil properly

Answer 2

Answer:

Boiling point of any liquid increases as the pressure acting over the liquid increases. At higher altitudes, atmospheric pressure is low and thus water boils at temperature lower than

Boiling point of any liquid increases as the pressure acting over the liquid increases. At higher altitudes, atmospheric pressure is low and thus water boils at temperature lower than100°C. As a result, the heat provided to open vessel is less, while cooking food for a given period..in a pressure cooker, the pressure is higher than one atmosphere. Due to higher pressure, water.boils at higher temperature than 100°C. Hence more heat is provided for a given time period to cook food and cooking food takes less time. Thus, fuel consumption is less while using pressure cookers to cook food. As it takes less fuel and less time, thus cooking food in pressure cooker is advantageous as compared to cooking in open vessels.