Question

Nita wrapped her hot soup container with a woolen cloth to keep the soup warm. Can she apply the same method to keep a glass of cold water cool? Justify your answer.

Answer 1

Answer : Yes, She can use the same woolen cloth to keep the cold drink cool as Woolen is an insulator and thus is a bad conductor of heat so when it is wrapped around cold drink, it does not allow the heat from outside to enter into the glass and in this way it keeps the drink cool.