Podcast Beta
Questions and Answers
What is the device that measures the heat transferred at constant pressure?
Calorimeter
What is the formula for specific heat capacity?
c = q / (m * ΔT)
What is the unit for specific heat capacity?
J/g∙K
According to the law of energy conservation, what is the relationship between the heat given out by the solid and the heat absorbed by the water?
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What is the formula for calculating the change in enthalpy (ΔH)?
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What is the unit for the change in enthalpy?
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Define thermodynamics and thermochemistry.
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Explain the concept of internal energy in a system.
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What are the system and surroundings in thermodynamics?
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Describe the law of energy conservation.
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How is heat involved in chemical and physical changes?
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Why is a clear definition of the system and surroundings necessary in energy transfer studies?
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Define specific heat capacity. What is the specific heat capacity of copper (Cu) in J/g∙K?
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Explain the difference between an endothermic and exothermic process in terms of energy change.
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Calculate the quantity of heat needed to raise the temperature of 150 g of water from 20ºC to 80ºC. The specific heat capacity of water is 4.184 J/g∙K.
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Explain the law of energy conservation in the context of heat transfer.
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What is the internal energy of a system, and how is it related to heat and work?
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Explain how a coffee-cup calorimeter can be used to measure heat changes in a reaction.
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