Physics 2013 JAMB Past Questions - Question 20: Foods cook quicker in salt water than in pure water because of the effect of

Correct Answer

A

Explanation

impurities raises the boiling point of water. this dissolved substances in salt water will raise the boiling point of water and hence make food to cook quickly salt water than in pure waterosmosis. When food is cooked in salt water, the concentration of salt outside the food is higher than inside. This creates a concentration gradient, causing water to move from the food into the salt water through osmosis. As a result, the food cooks faster as the heat is transferred more efficiently through the water. Additionally, the salt in the water can enhance the flavor of the food.