high-quality hi-fi power and amplifiers generate large amounts of heat. to dissipate the heat and prevent damage to the electronic components, heat-radiating metal fins are used. would it be better to make these fins out of iron or aluminum? specific heat capacities for aluminum and iron are 0.89 J/degrees C.g and 0.45 J/degrees C.g, respectively. explain your answer
Aluminum, it takes more energy (0.89 J vs. 0.45 J) to heat it up 1 degree Celsius per gram. For example, 1 Joule of energy would heat 1 gram Al only 1.x deg C, while Fe would heat up by more than 2. Might wanna throw in something about thermal conductivity k for some bonus points.
Aluminum, because it dissipates heat faster.
Aluminum has high specific heat than iron which means more energy is require to change aluminum temperature than it of iron. A good conductor is a good emmiter so aluminum will be a best choice since it will not heat up as much as iron for the same amount of mass and energy imput.
Look up heat sinks and find one made of iron. You won't. They are always made of aluminum.
