Answer:
Below:
Explanation:
The Contact process If the temperature is increased, the equilibrium position moves in the direction of the endothermic reaction. This means it moves to the left in the Contact process. ... However, the rate of reaction is low at low temperatures. So, as in the Haber process, a compromise temperature of 450 °C is chosen.
Habar Process...
The Haber process, also called the Haber–Bosch process, is an artificial nitrogen fixation process and is the main industrial procedure for the production of ammonia today. It is named after its inventors, the German chemists Fritz Haber and Carl Bosch, who developed it in the first decade of the 20th century.
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Answer:
Enthalpy change is 6007 J
Entropy change is
Gibb's free energy change is 0 J.
Explanation:
From the given,
The enthalpy change for the melting of ice =
Temperature =
Let's convert the temperature centigrade into Kelvin.
Number of moles of ice = 1.00 mol
Enthalpy change of 1.00 mol temperature
Therefore, Enthalpy change () for the melting of 1.00 mole of ice at temperature is 6007 J.
Entropy change for the melting of 1.00 mole of ice at :
Therefore, Entropy change() for the melting of 1.00 mole of ice at temperature is .
The Gibb's free energy change is expressed by the following formula.
Therefore, Gibb's free enrgy change () for the melting of 1.00 mole of ice at temperature is
<span>they both had their conclusions based on solid evidence</span>
Hans Christian Oersted is acknowledged as the first to isolate aluminum in 1825 in Copenhagen, Denmark
Explanation:
Answer:
The pH at the equivalence point is lower than 7
Explanation:
Given the titration involves a strong acid and a weak base
An example is the reaction between ammonia and hydrochloric acid in the aqueous phase
The pH of the base will ordinarily start high and drop rapidly with the additions of acid. As the equivalence point is approached, the pH will change more gradually, until finally one drop will cause a rapid pH transition through the equivalence point.
If a chemical indicator is used—methyl orange would be a good choice in this case—it changes from its basic to its acidic colour.
In strong acid-weak base titrations, the pH at the equivalence point is not 7 but below it. This is due to the production of a conjugate acid during the titration; it will react with water to produce hydronium ions.