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For conductive and convective heat transfer, the rate of heat transfer is proportional to the the temperature difference; if you double the difference you will double the rate of heat transfer.
For radiative heat transfer, the rate of heat transfer is proportional to the difference of the 4th powers of the absolute temperatures.
Angela Veum
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Does temperature difference does not affect heat transfer rate?
yes
conclusion and recommendation of lab heat transfer of first law termodynamics?
Conclusion The lab experiment on heat transfer of first law thermodynamics has demonstrated that heat energy can be transferred from one body to another through conduction, convection, and radiation. The data collected in this experiment shows that the rate of heat transfer is determined by the thermal conductivity of the material, the surface area of the material, and the temperature difference between the materials. The results of the experiment suggest that the higher the thermal conductivity of the material, the greater the rate of heat transfer. In addition, the higher the temperature difference between the two materials, the more heat will be transferred. Furthermore, the larger the surface area of the material, the greater the rate of heat transfer. Recommendation This lab experiment has shown that heat transfer is a complex process and can be further explored by performing more experiments with different materials and different temperature differences. In addition, this experiment has shown that the factors which affect heat transfer, such as thermal conductivity and surface area, can be manipulated to increase or decrease the rate of heat transfer. Therefore, it is recommended that further experiments should be conducted in order to further understand how these factors interact to affect the rate of heat transfer. Additionally, it is recommended that experiments should be conducted to explore how different materials and different temperature differences affect the rate of heat transfer. Finally, it is recommended that experiments should be conducted to explore how different materials and different surface areas affect the rate of heat transfer.
How does heat affect the rate of the reaction?
Increasing the temperature the reaction rate increase.
At what speed does heat radiation travel?
Heat transfer rate in radiation is proportional to the fourth power of the temperature difference
What does an insulator do to the rate of heat transfer?
It reduces the rate of transfer.
How does temperature affect reaction rate hot?
The Hotter the temperature, the faster the particle moves. During the reaction, atoms transfer in different molecules (or compounds), therefore the temperature does affect the speed of the reaction.
How would the shape of an object affect the rate of change in temperature?
The larger the surface area the faster the rate of heat loss will be.
What is the heat which travel molecule to molecule?
if you mean the transfer rate of heat ?; the heat transfer rate depends on the atom or molecule type .
How heat transfer rate increases in shell and tube heat exchanger?
In simple words, by increasing retention time of fluids. Other parameters which affect rate of heat transfer are: 1) Fins 2) Baffles 3) no. of passes. 4) Material of construction of tubes.
What is the Formula for calculating heat transfer by convection?
heat rate = characteristic of fluid and structures * area * difference in temperature between surface and bulk fluid
Why does a radioactive decay cause a rise in temperature?
Emitted particles transfer energy to surrounding atoms when they collide with them
How fast does 4oz of water freeze?
Freezing rate depends on the surface area, the heat transfer medium, and its temperature. If it is a thin layer (large surface area) of water it would freeze faster than a thick layer (smaller surface area). A liquid heat transfer medium, like liquid nitrogen, would have a higher heat transfer rate than a gas, like air. Lastly, the colder the heat transfer medium, the faster the heat transfer rate, the faster the water would freeze.
