Areaction in which a, b, and c react to form products is zero order in a, one-half order in b, and second order in c. by what factor does the reaction rate change if the concentration of a is doubled? 1 by what factor does the reaction rate change if the concentration of b is doubled? 1.4 by what factor does the reaction rate change if the concentration of c is doubled? 4

a) 1

b) 1.414

c) 4

Explanation: Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

a)  

b)

c)

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the maximum mass of nh3 is nh3 in grams