Question

What is the relative amount of each alpha for a 40% wt% Sn-60% Pb at 150 degrees. Express your answer as a percentage (%)\n$T(^{\circ}C)$\n300\nPb-Sn system\n$L$ (liquid)\n$L+\alpha$\n200$\alpha$\n$183^{\circ}C$\n18.3\n61.9\n$L+\beta$ $\beta$\n97.8\n100\n$\alpha+\beta$\n0\n20\n60\n80\n100\nC, wt% Sn\nAnswer: 27.3 

          What is the relative amount of each alpha for a 40% wt% Sn-60% Pb at 150 degrees. Express your answer as a percentage (%)\n$T(^{\circ}C)$\n300\nPb-Sn system\n$L$ (liquid)\n$L+\alpha$\n200$\alpha$\n$183^{\circ}C$\n18.3\n61.9\n$L+\beta$  $\beta$\n97.8\n100\n$\alpha+\beta$\n0\n20\n60\n80\n100\nC, wt% Sn\nAnswer: 27.3
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What is the relative amount of each alpha for a 40% wt% Sn-60% Pb at 150 degrees. Express your answer as a percentage (%)\n$T(^{\circ}C)$\n300\nPb-Sn system\n$L$ (liquid)\n$L+\alpha$\n200$\alpha$\n$183^{\circ}C$\n18.3\n61.9\n$L+\beta$ $\beta$\n97.8\n100\n$\alpha+\beta$\n0\n20\n60\n80\n100\nC, wt% Sn\nAnswer: 27.3

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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What is the relative amount of each alpha for a 40% wt% Sn-60% Pb at 150 degrees? Express your answer as a percentage (%). T(C) Pb-Sn system 300t L (liquid) L+a 200 183C 61.9 18.3 97.8 100 a+B 120 0 60 80 100 C, wt% Sn Answer: 27.3
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00:01 All right, guys, let us solve this question.
00:05 So in order to solve this question, we will first have to refer to figure 9 .20.
00:17 That is on page number 327.
00:26 We can see that at 540 degrees centigrade, if we connect the lines appropriately about alpha plus liquid.
00:37 Region will be divided equally in half.
00:42 So the concentration value occurs at the intersection of the tie lines at the solid and liquid lines from the figure 9 .20.
00:56 This occurs at c alpha is equal to 26 % weight and c.
01:12 L is 54 % weight.
01:23 Okay.
01:24 So moving on to the next step, the concentration in the atom percent can be found from the following equation that is c is equal to c1a.
01:43 It is a2 divided by c1a2 plus c2a1 multiplied by 100.
02:01 So in alpha phase, in alpha phase, this is c magnesium...
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