The total energy of an isolated system is constant.
Heat cannot be converted into work.
The internal energy of a system is independent of its state.
The first law of thermodynamics states that the total energy of an isolated system is constant, meaning energy can neither be created nor destroyed.
Questions & Step-by-step Solutions
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Q
Q: What does the first law of thermodynamics state?
Solution: The first law of thermodynamics states that the total energy of an isolated system is constant, meaning energy can neither be created nor destroyed.
Steps: 5
Step 1: Understand that energy is a property that can change forms, like from heat to motion.
Step 2: Know that the first law of thermodynamics is about energy conservation.
Step 3: Realize that in an isolated system, the total amount of energy remains the same.
Step 4: Remember that energy cannot be created from nothing or completely disappear.
Step 5: Conclude that energy can only change from one form to another, but the total energy stays constant.