How does a catalyst work?
a) it shifts the reaction toward the products
b) it changes the pressure of the products
c) it increases the temperature of reactants
d) it increases the temperature of the products
e) it decreases the activation energy hurdle

A catalyst decreases the activation energy hurdle. It provides an alternate pathway to the reaction product by decreasing the activation energy hurdle. The rate of the reaction increases as now the activation energy decreases. A catalyst alters the reaction rate without being consumed in the reaction.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.

5.6⋅10−^19  j

do you need the explaination?