일반물리학 1 — The Kinetic Theory of Gases: Problem 33

33 Oxygen gas having a volume of \(1200 \text{ cm}^3\) at \(40.0^\circ\text{C}\) and \(1.01 \times 10^5 \text{ Pa}\) expands until its temperature is \(493 \text{ K}\) and its pressure is \(1.06 \times 10^5 \text{ Pa}\). Find (a) the number of moles of oxygen present and (b) the final volume of the sample.