A gas has a distribution of speeds that looks like the following. A: Mass of water 100 g 0.1 kg Initial temperature 24.6C Final. The average gas molecule velocity is zero, since there are just as many gas molecules. (c) After a short time, both the slower-moving O 2 molecules and the faster-moving H 2 molecules have distributed themselves evenly on both sides of the vessel. Solution for Which of the following gases has the highest average speed at 400K. The data table below gives the temperature and pressure of four different gas samples, each in a 2-liter. The lighter gas, H 2, passes through the opening faster than O 2, so just after the stopcock is opened, more H 2 molecules move to the O 2 side than O 2 molecules move to the H 2 side. 33.A real gas behaves more like an ideal gas when the gas molecules are A) He(g) B) NH3(g) C) Cl2(g) D) CO2(g) 34.Under the same conditions of temperature and pressure, which of the following gases would behave most like an ideal gas 35. (b) When the stopcock is opened, they mix together. Figure 1. (a) Two gases, H 2 and O 2, are initially separated. The gaseous atoms and molecules continue to move, but since their concentrations are the same in both bulbs, the rates of transfer between the bulbs are equal (no net transfer of molecules occurs). In a closed environment, diffusion will ultimately result in equal concentrations of gas throughout, as depicted in Figure 1. The gaseous atoms or molecules are, of course, unaware of any concentration gradient, they simply move randomly-regions of higher concentration have more particles than regions of lower concentrations, and so a net movement of species from high to low concentration areas takes place. In general, we know that when a sample of gas is introduced to one part of a closed container, its molecules very quickly disperse throughout the container this process by which molecules disperse in space in response to differences in concentration is called diffusion (shown in Figure 1).
Which of the following gases has the lowest average speed at 25°c? free#
The mean free path increases with decreasing pressure in general, the mean free path for a gaseous molecule will be hundreds of times the diameter of the molecule The mean free path is the average distance a molecule travels between collisions. At room temperature, a gaseous molecule will experience billions of collisions per second. Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target. The average speed of the helium molecules is 1669 m/s, while that of the BrF molecules is only 336 m/s. If you have ever been in a room when a piping hot pizza was delivered, you have been made aware of the fact that gaseous molecules can quickly spread throughout a room, as evidenced by the pleasant aroma that soon reaches your nose.
![which of the following gases has the lowest average speed at 25°c? which of the following gases has the lowest average speed at 25°c?](https://www.coursehero.com/thumb/1e/02/1e023aaea365eed5847c2d6a738dd641756829ab_180.jpg)
What would be the pressure of this sample at 27C and the same volume a. A sample of 0.010 mole of nitrogen dioxide gas is confined at 127C and 2.5 atmospheres. Define and explain effusion and diffusion greater than the average speed of the nitrogen molecules.By the end of this section, you will be able to: