Ozone in the troposphere is formed by the following steps:
The first step is initiated by the absorption of visible light (NO2 is a brown gas). Calculate the longest wavelength required for step (1) at 25°C. [Hint: You need to first calculate ΔH and hence ΔU for (1). Next, determine the wavelength for decomposing NO2 from ΔU.]
Interpretation:
The maximum wavelength required to decompose
Concept introduction:
Standard enthalpy of reaction (
It is the change in enthalpy occurs when materials involved in reaction react under standard state condition.
Internal energy:
It is the sum of kinetic and potential energies of the particles that form the system. At standard conditions the internal energy
The mathematical equation of various characteristics of light wave is
c is the speed of light (
h is Planck’s constant (
E is the energy of light particle
Answer to Problem 20.74QP
The maximum wavelength required to decompose
Explanation of Solution
Given,
The standard enthalpy of decomposition of
The energy involved in decomposition of
The energy needed to decompose one molecule of
The maximum wavelength that can decompose
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Chapter 20 Solutions
Chemistry
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