5
lesson pretestMultiple Choice

Pretest

Question 5 • Chemistry

Which laws can be combined to form the ideal gas law?

Answer
A
Gay-Lussac’s law and Avogadro’s law
B
Dalton’s law, Gay-Lussac’s law, and Avogadro’s law
C
Boyle’s law and Charles’s law
D
Charles’s law, Avogadro’s law, and Boyle’s law

Explanation

Boyle’s law relates pressure and volume, Charles’s law relates volume and temperature, and Avogadro’s law relates volume and the amount of gas. Combining these relationships gives the ideal gas relationship, PV = nRT. Therefore, the correct choice is D, Charles’s law, Avogadro’s law, and Boyle’s law.

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