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1 answer:
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Explanation:
Relation between temperature and activation energy according to Arrhenius equation is as follows.
k =
where, k = rate constant
A = pre-exponential factor
= activation energy
R = gas constant
T = temperature in kelvin
Also,
=
= (244 + 273) K = 517.15 K
=
= (597.15 + 273) K = 597.15 K
= 6.7
,
= ?
R = 8.314 J/mol K
= 71.0 kJ/mol = 71000 J/mol
Putting the given values into the above formula as follows.
= 2.2123
= 9.1364
Thus, we can conclude that rate constant of this reaction is .
The moles can be defined as the mass of the substance with respect to molar mass. The moles of potassium nitrate is 1 mol.
<h3>How to calculate moles of a substance?</h3>The moles of a compound can be calculated from:
The molarity can be defined as the moles of solute in a liter of solution.
The molarity can be expressed as:
The molarity of potassium nitrate solution is 2 M, and the volume is 500 mL.
The moles of potassium nitrate is given as:
The moles of potassium nitrate in 2 M, 500 mL solution are 1 mol.
Learn more about moles, here: