Concept explainers
(a)
Interpretation:
Balanced
(a)
Explanation of Solution
In decomposition reaction, a single reactant undergoes reaction to form two or more products. Nitrogen gas, oxygen gas, and water vapor are the products obtained during the decomposition of ammonium nitrate.
Balanced chemical reaction for the decomposition of ammonium nitrate is given as:
(b)
Interpretation:
Number of moles of gas are produced if
(b)
Answer to Problem 5.100QE
Explanation of Solution
Balanced chemical reaction for the decomposition of ammonium nitrate is given as:
Number of moles in 1 kilogram of ammonium nitrate is determined as follows,
Two moles ammonium nitrate reacts to give two moles of nitrogen gas, one mole of oxygen gas and four moles of water vapor. Hence, seven moles of gas is formed.
Number of moles of nitrogen, oxygen and water vapor formed on the decomposition of
Number of moles of gas are produced if
Therefore,
(c)
Interpretation:
Energy are released per pound of ammonium nitrate should be calculated.
Concept introduction:
Enthalpy
The value of standard enthalpy change
Where,
n is the number of moles.
(c)
Answer to Problem 5.100QE
Energy are released per pound of ammonium nitrate is
Explanation of Solution
Balanced chemical reaction for the decomposition of ammonium nitrate is given as:
Convert the unit of
Number of moles in 1 pound of ammonium nitrate is determined as follows,
Standard enthalpy of formation values is given below,
Change in enthalpy can be calculated by the equation:
Substitute the values as follows,
Therefore, the energy are released per pound of ammonium nitrate is
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Chapter 5 Solutions
Chemistry: Principles and Practice
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