Practice Entropy And Spontaneity (5.6.2) - Thermodynamics

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is entropy?
Show hintHide hint
Think about arrangement and movement of particles.
Question 2.
Is a spontaneous process always fast?
Show hintHide hint
Consider the reaction rates discussed.
3Question 3.
How is spontaneity defined?
Show hintHide hint
Think of processes that happen on their own.
4Question 4.
Is a reaction with ∆G < 0 spontaneous?
- True
- False
Show hintHide hint
Remember the relationship between Gibbs energy and spontaneity.
Question 5.
Explain why some endothermic reactions can be spontaneous.
Show hintHide hint
Consider the role of temperature in the Gibbs free energy equation.
Question 6.
Calculate the Gibbs free energy for a reaction at 350 K, given ∆H = 100 kJ and ∆S = 0.3 kJ/K.
Show hintHide hint
Use the Gibbs equation to find the answer.

4 more questions in this section. Enroll free to practise them all.