600 300 y 1 L (61.9 wt% Sn) L h 500 a + L 200 B+L 400 CY 183C Temperature (C) 18.3 97.8 Temperature (F) 300 100 Q+B 200 a(18.3 wt% 'B(97.8 wt% Sn) Sn) 100 20 80 40 601 C3 (61.9) Composition (wt%Sn) 100 (Sn) (Pb) 1 4 points Which phases are present at a composition of 85 wt% tin at a temperature of 200 degrees Celsius beta alpha liquid 2 to 4 points Which phases are present at a composition of 90 wt% lead at a temperature of 150 degrees Celsius alpha beta liquid 3 De 4 points What is the composition of the equilibrium liquid at 250 degrees Celsius? Type your