Question

Each of the following situations involves the flow of heat energy. For each scenario, specify the primary mode (conduction, convection, or radiation) by which the energy is transferred. a)What is the primary mode of energy transfer from hot coffee inside a Thermos bottle to the environment? b)What is the primary mode of energy transfer from your bare feet to a cold ceramic bathroom floor in the middle of winter? c)What is the primary mode of energy transfer from your body to your hands when you blow on them to warm them? d)What is the primary mode of energy transfer into your sealed car parked in the sun on a hot summer day? e)What is the primary mode of the flow of energy from your tongue to a metal railing if you happen to lick it on a cold winter day? f)what is the primary mode of energy transfer from a hair dryer to your wet hair? g)What is the primary mode of energy transfer from your body on a cold day with no wind? h)What is the primary mode of energy transfer away from your body on a very windy day?

Answer 1

Answer:

radiation

b.conduction

c.convection

d.radiation

e.conduction

f.convection

g.radiation

h.convection

Explanation:

Radiation is a heat transfer mode without a conveying medium

Conduction is a heat transfer mode were by more energetic particles transfer energy to the less energetic particle of the same substance.

Convection transfer heat by mixing of the fluids

Answer 2

Answer:

The primary mode of heat transfer is conduction since the heat transfer is through contact surface,the primary mode of heat transfer from bare foot to the floor is also conduction,radiation is the mode of heat transfer in the car.