1. Thermodynamics
The First Law Of Thermodynamics — Quiz
Test your understanding of the first law of thermodynamics with 5 practice questions.
Practice Questions
Question 1
Using the convention $\Delta U = Q - W$, what does the first law of thermodynamics state?
Question 2
A system absorbs $500\,\text{J}$ of heat and does $200\,\text{J}$ of work on the surroundings. What is $\Delta U$?
Question 3
A gas is compressed so that $100\,\text{J}$ of work is done on it, and no heat is transferred. Using $\Delta U = Q - W$, what is $\Delta U$?
Question 4
In the sign convention used for the first law, what does a positive value of $Q$ mean?
Question 5
Which quantity is the internal energy of a thermodynamic system best described as?