Answer:
E = 17 kJ
Explanation:
The enthalpy of the reaction is:
<u>Where</u>:
Ep: is the energy of the products
Er: is the energy of the reactants
Similarly, the enthalpy of the reaction is related to the activation energy forward (
) and to the activation energy reverse (
) as follows:
Having that ΔH = 44 kJ and = 61 kJ, the activation energy of the reverse reaction is:
Therefore, the activation energy of the reverse reaction is 17 kJ.
I hope it helps you!
Answer:
From Table S you will take the value of S and then you will subtract (Table S Value-2.85) then divide by Table S value. After you will multiply by 100 to get percent.
Explanation:
I would separate a mixture of marbles, corks, and nails by using a magnet to remove the nails. Put the marbles and cork in water. Remove the floating cork.
Answer: 2) Chloroform & Caustic potash
Explanation:
The carbylamine reaction is a kind of chemical test which is done to detect primary amines in an unknown solution. It cannot detect secondary and tertiary amines.
The reaction involves the heating with up of the unknown solution with alcoholic potassium hydroxide or caustic potash and the chloroform.
In the presence of primary amine, the production of isocyanide results.
Answer:
<h2>7.65 litres </h2>
Explanation:
The new volume can be found by using the formula for Boyle's law which is
Since we're finding the new volume
15 kPa = 15,000 Pa
50 kPa = 50,000 Pa
We have
We have the final answer as
<h3>7.65 litres </h3>
Hope this helps you
