In which of these situations is convection most likely the main form of heat transfer?

Warm air from a heater on the first floor of a house moves to the upper floors.

The sides of a metal pan become hot when the pan is placed on a stove burner.

A person gets a sunburn from lying on the beach too long.

An ice cube melts when a person holds it in his hand.

Question

Chemistry

Willie Fisher

28 June, 23:34

In which of these situations is convection most likely the main form of heat transfer?

Warm air from a heater on the first floor of a house moves to the upper floors.

The sides of a metal pan become hot when the pan is placed on a stove burner.

A person gets a sunburn from lying on the beach too long.

An ice cube melts when a person holds it in his hand.

+2

Answers (1)

Know the Answer?

Karina Cannon · Answer 1

In the first situation: the mechanism of covection is the main form of heat transfer when warm air from a heater moves around and upward.

In the case of the metal pan the mechanism of heat transfer is conduction.

In the case of sunburn the mechanism is radiation.

In the case of an ice cube melting in a hand, conduction is the most important mechanism.