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NEETChemistryThermodynamics (C)

What is the key characteristic of a spontaneous reaction or change?

Options

  1. AIt occurs immediately when reactants come into contact.
  2. BIt occurs at an extremely slow rate.
  3. CIt can reverse its direction on its own.
  4. DIt is an irreversible process.

Correct answer

D. It is an irreversible process.

Step-by-step solution

A key characteristic of a spontaneous reaction or change is that it is an irreversible process, and it cannot reverse its direction on its own.

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