Water can be formed in the following reaction: 2h2 + o2 —> 2h2o

if you have 7 moles of hydrogen gas (h2), how many moles of water can you form? (assume you have excessive amount of oxygen gas)

7 moles

Explanation:

Given data:

Moles of hydrogen = 7 mol

Moles of water formed = ?

Solution:

Chemical equation:

2H₂ + O₂ → 2H₂O

Now we will compare the moles of water with hydrogen from balance chemical equation:

              H₂          :        H₂O

                2          :           2

                7          :           7

So in the presence of excess oxygen and 7 moles of hydrogen seven number of moles of water produced.

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.