From kinetically point of view speed of the reaction depends on:
speed of the reaction = k [A] [B]
So to increase the speed of the reaction the researcher made this changes:
1. Increase the concentration of reactants
2. Increase the temperature
3. Add a catalyst to lower the activation energy of the reaction
Temperature and activation energy are found behind the k constant and they have an influence on the reaction speed.
78.37 °C
It mean , ethanol, with a molecular weight (MW) of 46, has a boiling point of 78 °C (173 °F), whereas propane (MW 44) has a boiling point of −42 °C (−44 °F).
Answer:
The right solution according to the question is provided below.
Explanation:
According to the question,
(a)
The initial conditions will be:
DO =
=
=
The initial oxygen defict will be:
Do =
=
The initial BOD will be:
Lo =
=
=
(b)
The time reach minimum DO:
tc =
=
By putting the values of log, we get
=
The distance to reach minimum DO will be:
Xc =
=
=
<span> so now we use the number of moles of NO 5.27 moles. use again the PV=nRT
R=62.36367(L mmHg K−1 mol−1)
T=35C + 273 = 308K
P=632 mm Hg
V=97.3 L
n=632*97.3/62.3636367*308=3.20145770868
Look at the mole ratio of NO to NO2 its 2:2 they share the same number of moles.
Atomic weight of each element in NO2
N:14 O:16
Molar Mass:(16*2)+(14*1)=46 g
Actual number of moles=3.20
Theortical number of moles=5.20
Percentage Yield=(Actual Yield/Theortical Yield)*100</span>
Answer:
pressure of gas are constant describe the relationship between moles and temprature