Chemical Engineering Thermodynamics (MCQs)

If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law.

  • A. Hess’s
  • B. Kirchoff’s
  • C. Lavoisier and Laplace
  • D. None of these
Answer: Option A.
Explanation: 
Hess law : if different process are used to bring the same chemical reaction than the enthalpy change is same for all of them. (Note : enthalpy is a point function doesn’t depends on the path between.)

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