Practice Measurement Of ∆u And ∆h: Calorimetry (5.3) - Thermodynamics

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8 questions

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6 sample questions

Question 1.
What is calorimetry?
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Think about what we measure in chemistry.
Question 2.
Define constant pressure.
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Consider the context of a calorimeter.
3Question 3.
What does a bomb calorimeter measure?
- Heat change at constant volume
- Heat change at constant pressure
- Pressure change
- None of the above
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Think about the operation of the calorimeter.
4Question 4.
True or False: Enthalpy change (∆H) can be measured at constant volume.
- True
- False
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Consider the definition of enthalpy.
Question 5.
A reaction releases 500 J of heat and does 150 J of work. Calculate the change in internal energy.
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Remember the first law of thermodynamics.
Question 6.
In a constant pressure calorimeter, 2 g of a substance absorbs 4 kJ of heat. Calculate the change in enthalpy.
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Recall that qp equals the heat absorbed.

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