What is the energy of an electron in the hydrogen atom determined by?
1 answer:
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Answer:
See explanation.
Explanation:
Hello,
Haber process is defined as the widely acknowledged productive process of ammonia by the reaction:
Which is carried out in gaseous phase. Thus, by means of the Le Chatelier's principle, it is possible to know that its standard enthalpy of reaction is -45.90 kJ/mol (NIST webbook) for which it is an exothermic chemical reaction, for that reason less ammonia will be produced at high temperature, nonetheless, the temperature should not be too low since the reaction rate significantly decrease, therefore, the optimum found temperature is 450 °C.
Moreover, since there are more moles (3+1=4) at the reactants and less moles at the products (2), increasing the pressure of the reaction increases the yield of ammonia, nonetheless, higher pressures involve the purchasing of more expensive equipment to withstand the high-pressures, for that reason, the best found pressure has been set as 200 atm.
Best regards.
Answer:
Explanation:
When you divide two measures, the rule for the <em>number of significant figures</em> of the quotient is to keep the number of significant figures of the measure with least significant figures.
- 2.31 has three significant figures
- 0.790 has three significant figures
Then, the asnwer must have three significant figures:
Since the figure after 2.92 is less than five, you just drop it.