Question: Show worked solution for both questions. Short examples Q: How much C should be added to 20 kg Fe to make the composition Fe80C20 (wt.%)?

Show worked solution for both questions.

Short examples Q: How much C should be added to 20 kg Fe to make the composition Fe80C20 (wt.%)? Ans: mc= 5 kg Q: How much C should be added to 20 kg Fe to make the composition Fe80C20 (at.%)? Ans: we need to first convert at.%-----wt.% C CIA, CA + CA X 100 Fe80C20 (at.%) = Fe93.306.7 (wt.%) mc= 1.436 kg C CA CA, + CA X 100

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