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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does internal energy represent in a system?
π‘ Hint: Think about what types of energy are present in chemical and physical processes.
Question 2
Easy
What is ΞU in relation to heat and work?
π‘ Hint: Recall the equation that describes internal energy changes.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does internal energy depend on?
- A. Path taken
- B. Initial and final states
- C. Temperature only
π‘ Hint: Consider the definition of state functions.
Question 2
In an adiabatic process, what happens to heat (q)?
- True
- False
π‘ Hint: Think about what distinguishes adiabatic from other processes.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A gas in a piston does 200 J of work on the surroundings while absorbing 150 J of heat. Calculate the change in internal energy.
π‘ Hint: Remember the sign convention for work done by the system.
Question 2
Consider a system that has 1000 J of internal energy. If it performs 300 J of work and releases 200 J of heat, what will its new internal energy be?
π‘ Hint: Use the internal energy change formula applied to given conditions.
Challenge and get performance evaluation