Question

Use the Gizmo to find the freezing, meting, and boiling points of water at 5,000 meters (16,404 feet). Write these values below.

Freezing point: ________ Melting point: __________ Boiling point: ____________

How did altitude affect the freezing, melting, and boiling points of water?
Try to explain these results based on the fact that air pressure decreases with altitude. It possible, discuss your ideas with your classmates and teacher. the reason boiling was lower.
Why does pasta take longer to cook in the mountains ?
A pressure cooker allows food to be cooked under high pressure. Why is this useful?

Answer 1

Answer:

See explanation

Explanation:

Freezing point and melting point increases slightly at higher altitude

The boiling point decreases at higher altitudes.

Air pressure decreases with altitude As a result of this, atmospheric pressure decreases and water must now boil at a lower temperature. In order to compensate for this lower boiling point of water, food must take a longer time to cook. The lowering of air pressure actually means that the air becomes thinner at higher altitudes.

Pressure cookers cook food at high pressure thereby reducing the cooking time significantly. This helps to retain 50% of the nutrients in the food, lower the kitchen temperature and lower the energy cost required to cook food.