Practice Thermodynamics (5) - Thermodynamics

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
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6 sample questions

Question 1.
Define a system in thermodynamics.
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Think about how the universe is divided for study.
Question 2.
What is a state function?
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Consider how temperature is always the same regardless of heating methods.
3Question 3.
The first law of thermodynamics states that energy:
- Can be created
- Can be destroyed
- Can only be transformed
- Can be increased
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Recall the principle of conservation of energy.
4Question 4.
True or False: A closed system allows for the exchange of matter.
- True
- False
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Think about how a closed vessel behaves during a reaction.
Question 5.
Calculate the Gibbs free energy change for a reaction at standard conditions if ΔH = -100 kJ and ΔS = 250 J/K.
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Make sure all units are consistent.
Question 6.
What is the total entropy change when 1 mol of ice melts into water at 0°C?
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Remember to convert kJ to J before calculating.

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