🔬 MCAT Exam Prep

The first law of thermodynamics states that:

A Entropy always increases
B Energy cannot be created or destroyed
C Heat flows from hot to cold
D Absolute zero is unattainable

✓ Correct Answer: Option B

The first law (conservation of energy): ΔU = q + w. Energy is conserved; it can be transferred or converted but not created or destroyed.

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