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Answer 1

$\huge\bold{\textbf{\textsf{{\color{cyan}{Answer}}}}}$

Consequently, the coefficient of linear expansion is expressed as the per degree Celsius, or change in the length of a 1 unit long material when there is a 10 C rise in temperature. Coefficient of Linear Expansion Formula. As per the definition, the formula is expressed as. αL1 = ∆L / ∆T, or.

$Ideal \: gas \: equation,\\</p><p></p><p>PV=nRT</p><p></p><p>So \: when \: no \: of \: moles \: of \: gas \: are \: constant \\ \frac{p1v1}{t1} = \frac{p2v2}{t2} \\ \\ \frac{v1 \times 640}{(273 + 47)} = \frac{620 \times 300}{(273 + 27} \\ \\ v1 = \frac{620 \times 300 \times 320}{640 \times 30} \\ \\ = 310cc$