Question

If the volume of a certain gas is changed from V_1 to V_2, the corresponding change in number of moles will be from n_1 to n_2. For such a case, Avogadro's law can also be expressed as V_1/n_1 = V_2/n_2 where n_1 and n_2 are the initial and final numbers of moles of the gas and V_1, and V_2 are the initial and final volumes of the gas, respectively. In an ideal gas, particles are considered to interact only when they collide, with no loss in energy or speed occurring during the collision. Studying ideal gases allows for simplifications, such as Avogadro's law. Imagine that the gas shown in the simulation is an ideal gas such as helium. Notice that the final number of moles of gas is 1 00 mol for each experimental run You can find the final volume of the gas using the y axis of the graph shown. Consider an experimental run at 273 K where the initial number of moles (n_1) is actually 1.00 mol, and the final number of moles (n_2)is 2 00 mol. Use the simulation to find the volume (V_1) of 1 00 mol of helium at 273 K and calculate the final volume (V_2). Express the volume to three significant figures, and Include the appropriate units. At 4.00 L, an expandable vessel contains 0 864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure. If you need a total of 2 00 mol of oxygen gas in the vessel? Express the volume to three significant figures, and include the appropriate units.

Answer 1

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