Question

Learning Goal:

To understand the heat conduction formula and the variables in it.

Conduction—the flow of heat from a hotter object to a cooler object or from a hotter region to a cooler region of the same object—is the most common mechanism of heat transfer. The formula governing this is

H=ΔQ/Δt=kA((T_H−T_C)/L),

where H is known as the heat current.

Part D

The quantity ΔQ/Δt is the rate of heat removed from the cold end of the rod to maintain its temperature.

The quantity is the rate of heat removed from the cold end of the rod to maintain its temperature.

true

false

Part E

The quantity ΔQ/Δt is the total amount of heat transferred from the hot to the cold end of the rod.

The quantity is the total amount of heat transferred from the hot to the cold end of the rod.

true

false

Part F

In the SI system of units, what are the units of the quantity ΔQ/Δt?

In the SI system of units, what are the units of the quantity?

joules

amperes

watts

Please answer part D, E and F

Answer 1

first let's use understand what does Q / t means

It is actually the rate of heat conducting per unit time.

so

Part D

The quantity ΔQ/Δt is the rate of heat removed from the cold end of the rod to maintain its temperature.

True

-----------------

Part E

The quantity ΔQ/Δt is the total amount of heat transferred from the hot to the cold end of the rod

False

--------------------------

Part F

In the SI system of units, what are the units of the quantity ΔQ/Δt?

ΔQ has units of Joules ( J)

Δt has units of seconds (s)

so,

units are J/s which is units of power and we know power has units of watt

so,

answer is Watts