For the overall chemical equation; which one of the following can you rightly as
ID: 1004439 • Letter: F
Question
For the overall chemical equation; which one of the following can you rightly assume? 2H,S(g) + 0,(g) rightarrow 2S(s) + 2HjO(l) The reaction is third-order overall. The reaction is second-order overall. The rate law is; rate - k[h_2 s] [O_2]. The rate law is; rate = k [H -S] [O_2]. The rate law cannot he determined from the information given. The gas phase reaction X + Y rightarrow 7. has a reaction rate which is experimentally observed to follow the relationship of rate = k[X]:lYJ. If the concentration of X is tripled and the concentration of Y is doubled, the reaction rate would be increased by what factor?Explanation / Answer
5.
The rate law of an elementary reaction(chemical reaction in which one or more of the chemical species react directly to form products in a single reaction step and with a single transition state) can be directly judged from the equation.
As tge above reaction is a one step one, we judge its rate law.
The reactant are 3 moleules(2 H2S + 1 O2). So option A and C are correct.
6.
new X=3X
new Y= 2Y
new rate= (3X)^2*(2Y)= 18*old rate.
i.e 18 times the rate increases.