Practice - Internal energy and enthalpy values
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Practice Questions
Test your understanding with targeted questions
Define internal energy.
💡 Hint: Think about what energy is contained within molecules.
What is the equation for enthalpy?
💡 Hint: Remember what H represents in thermodynamics.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does internal energy represent?
💡 Hint: It's related to molecular activity.
True or False: Enthalpy is defined as H = U - PV.
💡 Hint: Remember the definition of enthalpy.
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Challenge Problems
Push your limits with advanced challenges
Calculate the change in internal energy for a combustion reaction where 500 J of heat is added and 200 J of work is done by the system.
💡 Hint: Identify heat added and work done correctly.
Given the standard enthalpy values for a reaction, what would be the heat of reaction if the formation values for products are 1000 kJ and for reactants are 600 kJ?
💡 Hint: Pay attention to the products and reactants in your calculations.
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