The two solids are identical, so energy conservation: AUtot = AU1 + AU2 = 0, or:

Cv(Tf - Ti) + Cv(Tf - T2) = 0, which yields: Tf = H (Ti + T2)

The entropy change is: AStot = AS1 + AS2 = Cv ln(Tf /T1) + Cv ln(Tf / T2)


4T1 x T2

T 2/T,


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Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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