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The Relationship Between Enthalpy (H), Free Energy (G) and Entropy (S)

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

For a reaction to be spontaneous, the sign of delta G must be:

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1. Which of the following conditions is MOST likely to produce a spontaneous reaction at all temperatures?

2. The entropy of a system decreases when:

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About This Quiz & Worksheet

With this interactive quiz and printable worksheet, you will learn about different variables in the equation, negative and positive enthalpy, and entropy.

Quiz & Worksheet Goals

In this quiz you will be assessed on comprehension of:

  • Entropy
  • Causes of spontaneous reactions
  • Enthalpy change

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information regarding free energy in chemistry
  • Making connections - use understanding of the equation
  • Distinguishing differences - compare and contrast topics from the lesson, such as Delta H, Delta G, and Delta S

Additional Learning

To learn more about free energy, check out the lesson The Relationship Between Enthalpy (H), Free Energy (G) & Entropy (S). It goes over:

  • Concept of free energy
  • Spontaneity of chemical reactions
  • Changes in enthalpy and entropy and what those mean
  • Effects of high and low temperature
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