Which of the following can lower the activation energy of a system?
a. density
b. catalysts
c. temperature
d. concentration

What can be found in the ionosphere

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

When the mercury level in a barometer decreases that atmospheric pressure has