12) What principle states that equal volumes of gases, at the same temperature a

Question

12) What principle states that equal volumes of gases, at the same temperature and pressure, 12) contain equal numbers of molecules? A) law of conservation of mass B) law of constant composition C) law of combining volumes D) Avogadro's theory E) none of the above 13) Which of the following laws is described by the equation PV -nRT? 13) A) Charles's law B) Boyle's law C) ideal gas law D) Gay-Lussac's law E) none of the above 19) What is the term that describes the relationship between two variables such that when one14) variable doubles, the other variable halves? A) inversely proportional B) reciprocally proportional D) directly proportional E) none of the above A-2

Explanation / Answer

12)

this is Avogadro’s law which states that equal volume of gas has same number of molecules

Answer: D

13)

PV = n*R*T is ideal gas law

Answer: C

14)

increasing one variable is decreasing other variable

SO, these values are inversely related

Answer: A

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