damage to , 1. High quality audio amplifiers generate large amounts of heat. To

Question

damage to , 1. High quality audio amplifiers generate large amounts of heat. To dissipate the hetese fins out of e these fins out of the electronic components, heat-radiating metal fins are used. Would it be better iron or aluminum? Why? (Hint: Compare the specific heat to mak capacities of iron and aluminum.) 12. Explain how calorimetry works to calculate ?? or ?? for a reaction. Does the tempe rature of the calorimeter increase or decrease for an endothermic reaction? For an exothermic reaction? Explain.

Explanation / Answer

Ans 1 :

The heat capacity of iron is less than the heat capacity of aluminium.

The heat is equal to = mass of metal x specific heat capacity x change in temperature

So if the same amount of heat is given . the iron will get more hotter than aluminium , as it has a lower heat capacity.

So Iron is not the perfect choice and Aluminium is better to make heat radiating metal fins.

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