- #1
strider171
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Homework Statement
Homework Equations
The Attempt at a Solution
This is a solved question. The answer is given above.
I can't understand why h1=h2.
[/B]
Heat transfer. Could anyone explain the solution?
- Thread starter strider171
- Start date
In summary, the conversation discusses a solved question about the equality of heat flow rates and the calculation of steady-state temperatures. The problem assumes only conduction and no radiated losses. It is concluded that H1 must equal H2 because of the direction of heat flow.
This is a solved question. The answer is given above.
I can't understand why h1=h2.
[/B]
- #2
- 1,598
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Assume that ##T_C## is between ##T_A## and ##T_B## and that there are equal heat flow rates ##B \rightarrow C## and ##C \rightarrow A## (because we want to calculate steady-state temperatures, and without the equality of the rates the ##T_C## would be changing).
- #3
CWatters
Science Advisor
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strider171 said:
H = heat flow. Heat H1 flows down B->C. The problem says to assume only conduction (eg through the rods) no radiated losses so where else can that heat flow go if not down C->A ? Therefore H1=H2.
- #4
strider171
- 2
- 0
Okay. Got it now. Thanks guys
FAQ: Heat transfer. Could anyone explain the solution?
1. What is heat transfer and how does it occur?
Heat transfer is the process by which thermal energy is transferred from one object or substance to another. This can occur through three methods: conduction, convection, and radiation.
2. What is the difference between conduction, convection, and radiation?
Conduction is the transfer of heat through direct contact between two objects or substances. Convection is the transfer of heat through the movement of fluids, such as air or water. Radiation is the transfer of heat through electromagnetic waves.
3. How is heat transfer related to temperature?
Heat transfer is closely related to temperature as it is the driving force behind the movement of thermal energy from a higher temperature to a lower temperature. The greater the temperature difference between two objects, the faster heat transfer will occur.
4. Can you give an example of heat transfer in everyday life?
Sure, a common example of heat transfer in everyday life is boiling water on a stove. The heat from the stove is transferred to the pot through conduction, causing the water to heat up and eventually boil. The steam rising from the pot is also an example of heat transfer through convection.
5. How can heat transfer be calculated or measured?
Heat transfer can be calculated using the equation Q = mcΔT, where Q is the amount of heat transferred, m is the mass of the object, c is the specific heat capacity, and ΔT is the change in temperature. It can also be measured using various instruments such as thermometers, calorimeters, and thermal imaging cameras.