Base your answers to the following questions on the system at equilibrium: 2C(s) + 2H2(g) + 52.4kJ ⇋ C2H4(g)
Which direction will the system shift when the temperature is decreased?

Describe what will happen to the concentration of hydrogen gas when the temperature is increased.

State one way in which you could increase the concentration of C2H4.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397