A valve separates two tanks, one containing 7.6 liters of oxygen at 4.0 atmospheres and the other containing 4.0 liters of carbon dioxide at 11.0 atm. When the valve is opened and the two gases are allowed to come together, what is final pressure

Explanation:

Hello,

In this case one could assume an initial temperature like 0 °C in order to compute both the moles of oxygen and carbon dioxide as shown below:

Now, the total moles are:

Therefore, the final pressure:

Best regards.

pure substance: iron,copper

impure substance: water,charcoal

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.