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Indian Navy INET Thermodynamics & Kinetic Theory — practice questions

Explore 1 free Thermodynamics & Kinetic Theory questions in Indian Navy INET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Thermodynamics & Kinetic Theory questions and exercises with answers

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Hess's law of constant heat summation is a direct consequence of:Read the answer and worked solution →

Worked practice questions

Hess's law of constant heat summation is a direct consequence of:

  1. Both the first and second laws together
  2. Energy being a path function
  3. The system being adiabatic
  4. Enthalpy being a state function
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Correct answer: D. Enthalpy being a state function

Hess's law states that the enthalpy change for a reaction depends only on the initial and final states, not on the route taken. This is exactly the statement that enthalpy is a state function. It lets us add and subtract thermochemical equations to obtain the enthalpy of reactions that are difficult to measure directly.

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