Chemical Engineering Basics

For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = – 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be_____.

  • A. 30000 J
  • B. 60000 J
  • C. 90000 J
  • D. 240000 J
Answer: Option C.

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