Question

an ice cube is dropped into a glass of milk at 20°c. which statement explains the transfer of kinetic energy (ke)? because milk has higher ke than ice, ke is transferred from the milk to the molecules of ice. because milk has higher ke than ice, ke is transferred from the molecules of ice to the milk. because ice has higher ke than milk, ke is transferred from the milk to the molecules of ice. because ice has higher ke than milk, ke is transferred from the molecules of ice to the milk.

Explanation:

Kinetic energy is related to temperature. Higher - temperature substances have higher average kinetic energy of their molecules. Milk at 20°C has a higher temperature than ice, so its molecules have higher KE. Heat (a form of energy transfer related to KE) flows from higher - KE substances to lower - KE substances.

Answer:

A. Because milk has higher KE than ice, KE is transferred from the milk to the molecules of ice.