Entropy and Free Energy Quiz

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Test your knowledge on spontaneous change, entropy, and free energy concepts!

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Jean Nicole A. Rivera

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Entropy and Free Energy Quiz


Froggy Jumps Entropy and Free Energy QuizVersión en línea Test your knowledge on spontaneous change, entropy, and free energy concepts! por Jean Nicole A. Rivera 1 What does entropy measure in a system? a The energy available for work. b The temperature of the system. c The disorder or randomness of a system. 2 Which law of thermodynamics states that entropy tends to increase? a The third law of thermodynamics. b The second law of thermodynamics. c The first law of thermodynamics. 3 What is free energy used to predict? a The temperature of a gas. b The total energy of a system. c The spontaneity of a process. 4 What is the formula for Gibbs free energy? a G = H + TS. b G = H - TS. c G = H * T. 5 When is a process considered spontaneous? a When it requires energy input. b When it is reversible. c When it occurs without external intervention. 6 What happens to free energy in a spontaneous reaction? a It decreases. b It increases. c It remains constant. 7 What does a negative change in Gibbs free energy indicate? a The process is at equilibrium. b The process is spontaneous. c The process requires energy input. 8 What is the relationship between entropy and temperature? a Entropy is independent of temperature. b Entropy decreases with temperature. c Entropy increases with temperature. 9 Which of the following processes increases entropy? a Melting of ice. b Condensation of steam. c Freezing of water. 10 What does a positive change in entropy signify? a An increase in disorder. b A stable state. c A decrease in energy. 11 Which thermodynamic law states that the entropy of a perfect crystalline substance is zero at the absolute zero of temperature? a First Law b Second Law c Third Law 12 Predict the entropy change of the system: H2 (g) + I2 (s) -> 2HI (g) a Positive b Negative c No net change 13 If the Gibbs free energy value is greater than O, it states that... a The reaction is spontaneous in the forward direction. b The reaction is non spontaneous. c The system is at equilibrium.

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Entropy and Free Energy Quiz

Froggy Jumps

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Entropy and Free Energy QuizVersión en línea

por Jean Nicole A. Rivera

What does entropy measure in a system?

Which law of thermodynamics states that entropy tends to increase?

What is free energy used to predict?

What is the formula for Gibbs free energy?

When is a process considered spontaneous?

What happens to free energy in a spontaneous reaction?

What does a negative change in Gibbs free energy indicate?

What is the relationship between entropy and temperature?

Which of the following processes increases entropy?

What does a positive change in entropy signify?

Which thermodynamic law states that the entropy of a perfect crystalline substance is zero at the absolute zero of temperature?

Predict the entropy change of the system: H2 (g) + I2 (s) -> 2HI (g)

If the Gibbs free energy value is greater than O, it states that...