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Substance A reacts spontaneously with substance B at room temperature. Substance A reacts with substance C at room temperature only in the presence of a catalyst. Which statement best explains this difference?

User Moe Steen
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1 Answer

13 votes

Between A and B

  • The reaction is spontaneous
  • Means reaction is happening by itself.
  • So randomness of A and B is increasing .

The highest probability is that A and B are solids and they are forming liquid or gases.

Between A and C

  • The reaction is non spontaneous
  • Randomness of particles is decreasing.

Highest probability is that A and C are gases and they are turning into liquid or solid

User Alexander Taborda
by
8.7k points
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