Given the three statements below, pick the correct answer.
I. Pressure is directly proportional to temperature in kelvins.
II. Volume is directly proportional to pressure.
III. Volume is directly proportional to the number of moles of the gas sample.

Question

Quizplus · Accepted Answer

Statement I is known as Gay-Lussac's Law, which states that pressure and temperature are directly proportional, so it is true. 
Statement II is known as Boyle's Law, which states that volume and pressure are inversely proportional, so it is false. 
Statement III is known as Avogadro's Law, which states that volume and the number of moles of gas are directly proportional, so it is true. Therefore, only statement I and III are true while statement II is false. Therefore, option (B) is the correct answer.

Given the Three Statements Below, Pick the Correct Answer