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Atul Singh posted an Question
February 09, 2023 • 03:12 am 30 points
  • IIT JAM
  • Geology (GG)

The following diagram represents a binary phase diagram for the system a-b at atmospheric pressure. if x is the initial composition of melt, 2 points then the a

The following diagram represents a binary phase diagram for the system A-B at atmospheric pressure. If X is the initial composition of melt, 2 points then the amount of melt that converts to solid when the magma cools from 1400 °C to 1250 "C is. %. (Round off to two decimal places). 1500 Melt 1400 A+B+Melt T(C) 1300 1250 1200 A+B 1100 10 25 40 75 80 A 20 30 40 60 B Wt.%

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    Asif ali Best Answer

    At 1400 °C 20 × Vs = 10 × VL-1 VL-1 = 2/3 -----------(1) At 1250°C 5 × Vs = 45 × VL -2 VL -2 = 1/10 ----------(2) ∆VL = ( 2/3-1/10) ×100 = 56.66%

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