Question

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

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 (usually at 0°C or lower). Heat (a form of kinetic - energy transfer) always flows from a higher - temperature substance to a lower - temperature one. So, kinetic energy is transferred from the milk (higher KE) to the ice (lower KE).

Answer:

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