Answer:
PART A 1st order in A and 0th order in B
Part B The reaction rate increases
Explanation:
<u>PART A
</u>
The rate law of the arbitrary chemical reaction is given by
![-r_A=k\times\left[A\right]^\alpha\times\left[B\right]^\beta\bigm](https://tex.z-dn.net/?f=-r_A%3Dk%5Ctimes%5Cleft%5BA%5Cright%5D%5E%5Calpha%5Ctimes%5Cleft%5BB%5Cright%5D%5E%5Cbeta%5Cbigm)
Replacing for the data
Expression 1 
Expression 2 
Expression 3 
Making the quotient between the fist two expressions
Then the expression for 
Doing the same between the expressions 1 and 3
Then
This means that the reaction is 1st order respect to A and 0th order respect to B
.
<u>PART B
</u>
By the molecular kinetics theory, if an increment in the temperature occurs, the molecules will have greater kinetic energy and, consequently, will move faster. Thus, the possibility of colliding with another molecule increases. These collisions are necessary for the reaction. Therefore, an increase in temperature necessarily produces an increase in the reaction rate.
The equilibrium constant<span> of a chemical reaction is the value of the reaction quotient when the reaction has reached </span>equilibrium<span>. An </span>equilibrium constant<span> value is independent of the analytical concentrations of the reactant and product species in a mixture, but depends on temperature and on ionic strength.</span>
Except:they are safe for all organisms except insect pest
Explanation:
Apply Boyle's Law :-
P1V1 = P2V2
- Where P1 is 25 atm
- V1 is 3L
- P2 is 75 atm
- V2 is what we need to find out.
25 × 3 = 75 × V2
<u>So, the answer is d) Part, 1L .</u>
Hope it helps :)
Answer: The average atomic mass of oxygen is 15.999 amu
Explanation:
Mass of isotope O-16 = 15.995 amu
% abundance of isotope O-16= 99.759 % = 
Mass of isotope O-17 = 16.995 amu
% abundance of isotope O-17 = 0.037% = 
Mass of isotope O-18 = 17.999 amu
% abundance of isotope O-18 = 0.204% = 
Formula used for average atomic mass of an element :
![A=\sum[(15.995\times 0.99759)+(16.995\times 0.00037)+(17.999 \times 0.00204)]](https://tex.z-dn.net/?f=A%3D%5Csum%5B%2815.995%5Ctimes%200.99759%29%2B%2816.995%5Ctimes%200.00037%29%2B%2817.999%20%5Ctimes%200.00204%29%5D)
Thus the average atomic mass of oxygen is 15.999 amu
