Answer to Question #270234 in Molecular Physics | Thermodynamics for Tpappy

Question #270234

A square plate of side 12cm is made of metal of linear expansivity 2*10-5 k as the plate is heated from 30degree c to 100degree c , the area of one of the face of the plate will increase to ?


1
Expert's answer
2021-11-22T18:04:28-0500

"a'=a(1+\\alpha \\Delta t)=12.0168~cm,"

"A'=a'^2=144.4~cm^2."


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