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- Help me answer: A pressure cooker reduces cooking time for food because
A pressure cooker reduces cooking time for food because
- Option 1)
Heat is more evenly distributed in the cooking space
- Option 2)
Boiling point of water involved in cooking is increased
- Option 3)
The higher pressure inside the cooker crushes the food material
- Option 4)
cooking involves chemical changes helped by a rise in temperature.
Answers (2)
As we learnt in
Gay Lussac’s Law -
Pressure -Temperature Relationship
- wherein
According to Gay ussac's law, at constant pressure of a given mass of a gas is directly proportional to the absolute temperature of the gas. Hence, on increasing pressure, the temperature is also increased. Thus in pressure cooker due to increase in pressure the boiling point of water involved in cooking is also increased.
Correct option is 2.
Option 1)
Heat is more evenly distributed in the cooking space
This is an incorrect option.
Option 2)
Boiling point of water involved in cooking is increased
This is the correct option.
Option 3)
The higher pressure inside the cooker crushes the food material
This is an incorrect option.
Option 4)
cooking involves chemical changes helped by a rise in temperature.
This is an incorrect option.
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