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A feed of \( 5000 \) kg/h yields \( 3200 \) kg/h of product and \( 1800 \) kg/h of waste. The process yield is

  • A.36.0 per cent
  • B.156 per cent
  • C.56.0 per cent
  • D.64.0 per cent

Answer: D

Correct answer: 64.0 per cent

\[ \text{Yield} = \frac{3200}{5000} \times 100 = 64.0\% \]

The waste stream, 1800 kg/h, accounts for the remaining 36 per cent - and the two streams sum to the feed, as a material balance requires.

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