Which of the following conditions will favor the spontaneity of a reaction?

Practice Questions

Q1
Which of the following conditions will favor the spontaneity of a reaction?
  1. High ΔH and low ΔS
  2. Low ΔH and high ΔS
  3. High ΔH and high ΔS
  4. Low ΔH and low ΔS

Questions & Step-by-Step Solutions

Which of the following conditions will favor the spontaneity of a reaction?
  • Step 1: Understand that a reaction's spontaneity is about whether it can happen on its own without outside help.
  • Step 2: Learn that ΔH (change in enthalpy) tells us if a reaction releases or absorbs heat.
  • Step 3: Know that a low ΔH means the reaction is exothermic, which is favorable for spontaneity.
  • Step 4: Understand that ΔS (change in entropy) measures the disorder or randomness in a system.
  • Step 5: Realize that a high ΔS means more disorder, which is also favorable for spontaneity.
  • Step 6: Conclude that a reaction is favored when it has both low ΔH (exothermic) and high ΔS (increased disorder).
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