HESI A23
HESI A2 Chemistry Practice Test
1. Who was the English scientist who made accurate observations on how pressure and volume are related?
- A. Charles
- B. Combine
- C. Boyle
- D. Gay-Lussac
Correct answer: C
Rationale: The English scientist who made accurate observations on how pressure and volume are related was Robert Boyle. Boyle's law states that the pressure of a gas is inversely proportional to its volume when the temperature is constant. This fundamental gas law was discovered by Robert Boyle in the 17th century and laid the groundwork for our understanding of the behavior of gases. Choices A, B, and D are incorrect. Charles refers to Charles's law, not Boyle. Combine is not related to the topic, and Gay-Lussac is associated with Gay-Lussac's law, not Boyle's law.