Thermal Conductivity given Heat Flow Rate Formula

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Thermal Conductivity is rate of heat passes through specified material, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance. Check FAQs
k=QLAsample∆T
k - Thermal Conductivity?Q - Heat Flow Rate?L - Thickness of Sample?Asample - Sample Area?∆T - Change in Temperature?

Thermal Conductivity given Heat Flow Rate Example

With values
With units
Only example

Here is how the Thermal Conductivity given Heat Flow Rate equation looks like with Values.

Here is how the Thermal Conductivity given Heat Flow Rate equation looks like with Units.

Here is how the Thermal Conductivity given Heat Flow Rate equation looks like.

10.1847Edit=125Edit21Edit52.6Edit4.9Edit
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Thermal Conductivity given Heat Flow Rate Solution

Follow our step by step solution on how to calculate Thermal Conductivity given Heat Flow Rate?

FIRST Step Consider the formula
k=QLAsample∆T
Next Step Substitute values of Variables
k=125W21m52.64.9K
Next Step Prepare to Evaluate
k=1252152.64.9
Next Step Evaluate
k=10.1846822379142W/(m*K)
LAST Step Rounding Answer
k=10.1847W/(m*K)

Thermal Conductivity given Heat Flow Rate Formula Elements

Variables
Thermal Conductivity
Thermal Conductivity is rate of heat passes through specified material, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance.
Symbol: k
Measurement: Thermal ConductivityUnit: W/(m*K)
Note: Value should be greater than 0.
Heat Flow Rate
Heat Flow Rate is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium.
Symbol: Q
Measurement: PowerUnit: W
Note: Value can be positive or negative.
Thickness of Sample
Thickness of Sample is the measure of the distance between two surfaces of an sample, usually the smallest of three dimensions.
Symbol: L
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Sample Area
Sample Area is defined as the space occupied by the surface of a sample.
Symbol: Asample
Measurement: AreaUnit:
Note: Value should be greater than 0.
Change in Temperature
The Change in Temperature is the difference between the initial and final temperature.
Symbol: ∆T
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.

Other formulas in Spectrometric Characterization of Polymers category

​Go Heat of Polymerization
ΔHp=Ep-Edp
​Go Mobility given Conductivity
μe=σe-[Charge-e]
​Go Change in Temperature given Thermal Conductivity
∆T=QLAsamplek
​Go Specific Heat Capacity given Thermal Diffusivity
c=kαρ

How to Evaluate Thermal Conductivity given Heat Flow Rate?

Thermal Conductivity given Heat Flow Rate evaluator uses Thermal Conductivity = (Heat Flow Rate*Thickness of Sample)/(Sample Area*Change in Temperature) to evaluate the Thermal Conductivity, The Thermal Conductivity given Heat Flow Rate formula is defined as the rate at which heat is transferred by conduction through a unit cross-section area of a material when a temperature gradient exists perpendicular to the area. Thermal Conductivity is denoted by k symbol.

How to evaluate Thermal Conductivity given Heat Flow Rate using this online evaluator? To use this online evaluator for Thermal Conductivity given Heat Flow Rate, enter Heat Flow Rate (Q), Thickness of Sample (L), Sample Area (Asample) & Change in Temperature (∆T) and hit the calculate button.

FAQs on Thermal Conductivity given Heat Flow Rate

What is the formula to find Thermal Conductivity given Heat Flow Rate?
The formula of Thermal Conductivity given Heat Flow Rate is expressed as Thermal Conductivity = (Heat Flow Rate*Thickness of Sample)/(Sample Area*Change in Temperature). Here is an example- 10.18468 = (125*21)/(52.6*4.9).
How to calculate Thermal Conductivity given Heat Flow Rate?
With Heat Flow Rate (Q), Thickness of Sample (L), Sample Area (Asample) & Change in Temperature (∆T) we can find Thermal Conductivity given Heat Flow Rate using the formula - Thermal Conductivity = (Heat Flow Rate*Thickness of Sample)/(Sample Area*Change in Temperature).
Can the Thermal Conductivity given Heat Flow Rate be negative?
No, the Thermal Conductivity given Heat Flow Rate, measured in Thermal Conductivity cannot be negative.
Which unit is used to measure Thermal Conductivity given Heat Flow Rate?
Thermal Conductivity given Heat Flow Rate is usually measured using the Watt per Meter per K[W/(m*K)] for Thermal Conductivity. Kilowatt per Meter per K[W/(m*K)], Calorie (IT) per Second per Centimeter per °C[W/(m*K)], Kilocalorie (th) per Hour per Meter per °C[W/(m*K)] are the few other units in which Thermal Conductivity given Heat Flow Rate can be measured.
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