Answer:
1. The enthalpy change for the backward reaction is –20 KJmol¯¹
2. The forward reaction is endothermic.
3. The activation energy for the forward reaction is +70 KJmol¯¹.
Explanation:
Considering the diagram given above, the following data were obtained:
1. The enthalpy change for the forward reaction being is +20 KJmol¯¹ and so, the enthalpy change for the backward reaction is –20 KJmol¯¹
2. The heat energy of the product is higher than that of the reactant. Therefore, the forward reaction is endothermic.
3. Activation energy is the minimum energy needed to be overcome in order for the reaction to proceed to product. It can be obtained from the energy profile diagram by considering the energy between the reactants and the peak.
For the question given above, Activation energy = 20 + 50
Activation energy = +70 KJmol¯¹
Answer:
Prokaryotic are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleotide.
Explanation:
Answer:
hope this will help you......
Because they have the same number of valence electrons.
Answer:
Explanation:
<u>The alkaline solution: </u>
40 ml of 0.1 M KOH
<u>The acid solution: </u>
30 ml of 0.1 M HCl
The neutralization reaction:
For 1 mol of HCl, 1 mol of KOH is consumed. If 0.003 mol of HCl are added, 0.003 mol of KOH reacted.
After titration:
Concentration (don't forget to add the volumes)
Calcualtion of the pOH:
![pOH=-log([OH^-])=-log(0.0143)=1.84](https://tex.z-dn.net/?f=pOH%3D-log%28%5BOH%5E-%5D%29%3D-log%280.0143%29%3D1.84)
For the pH:
