Consider a Pb$-35\%$ Sn alloy. Determine:

$($b$)$ the composition of the first solid toform during solidification

$($c$)$ the amounts and compositions of eachphase at $184\backslash$deg C

$($d$)$ the amounts and compositions ofeach phase at $182\backslash$deg C

$($e$)$ the amounts and compositions of eachmicroconstituent at $182\backslash$deg C

$($f$)$ the amounts and compositions ofeach phase at $25\backslash$deg C$.$