Question

Food is cooked faster in Delhi when compared to Shimla. Explain.

Answer 1

Food is cooked faster in Delhi when compared to Shimla because:

• Shimla is located at a higher altitude than Delhi. The atmospheric pressure is low in Shimla as compared to Delhi.
• Boiling is directly proportional to atmospheric pressure.
• At higher altitudes, atmospheric pressure reduces, and therefore the boiling point of water also gets reduced.
• Now, heat is required in cooking the food, and heat is directly proportional to temperature.
• After reaching boiling point temperature is uniform. So the heat capacity is reduced because the boiling point is reduced, so it will take a longer time to cook at higher altitudes.