why ozone is thermodynamically unstable?
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Ozone is thermodynamically less stable than oxygen because its decomposition into oxygen results in the liberation of heat. Ozone consists of three molecules of oxygen and thus in this its in unstable state so in order to get stable it gives up its one molecule of oxygen to restore diatomic state.
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Gem diols are unstable because the OH(alcohol) groups are present on a single carbon. ... Geminal diols are unstable mainly due to the fact that two oxygen atoms on the same carbon leads to more lone pair-lone pair repulsion.
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Ozone in the Earth's stratosphere is created by ultraviolet light striking ordinary oxygen molecules containing two oxygen atoms (O2), splitting them into individual oxygen atoms (atomic oxygen); the atomic oxygen then combines with unbroken O2 to create ozone, O3.
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In the troposphere, near the Earth's surface, human activities lead to ozone concentrations several times higher than the natural background level. Too much of this ground-level ozone is 'bad' as it is harmful to breathe and also damages vegetation.
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The slower the reaction occurs, the greater the kinetic stability. If you say, "This reaction is kinetically stable," then that implies that the reaction occurs very slowly. Thermodynamic stability depends on whether or not the reaction is spontaneous. This depends on the change in free energy (ΔG).
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Note that while the majority of the values of standard enthalpies of formation are exothermic, or negative, there are a few compounds such as NO(g) and N2O4(g) that actually require energy from its surroundings during its formation; these endothermic compounds are generally unstable.
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The average bond enthalpy in ozone is 362 kJ mol-‐1. Using the energy and wavelength relationship given above, and the bond enthalpy data given in section 11 of the Data Booklet, calculate the maximum wavelength, in nm, of the UV radiation required to break the O = O double bond in oxygen and the O – O bond in ozone.
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Describe why ozone has a bent shape instead of a linear shape. The electron nonbonding domain takes up space, making the molecule bent. ... Ozone has fewer lone pairs than water, thus a larger angle between bonds.
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Acetylene is highly unstable. High pressure or temperatures can result in decomposition that can result in fire or explosion. Acetylene cylinders must never be transported or stored in a closed vehicle.
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Because warm air rises and cool air sinks, the troposphere is unstable. In the stratosphere, temperature increases with altitude. The stratosphere contains the ozone layer, which protects the planet from the Sun's harmful UV radiation.
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The amount of chlorine and bromine entering the stratosphere from natural sources is fairly constant over time and, therefore, cannot be the cause of the ozone depletion observed since the 1980s. Other human activities that are sources of chlorine and bromine gases.
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The ozone layer is created when ultraviolet rays react with oxygen molecules (O2) to create ozone (O3) and atomic oxygen (O). This process is called the Chapman cycle. Step 1: An oxygen molecules is photolyzed by solar radiation, creating two oxygen radicals: hν+O2→2O.
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Ozone is naturally produced in the stratosphere in a two-step process. In the first step, ultraviolet sunlight breaks apart an oxygen molecule to form two separate oxygen atoms. In the second step, these atoms then undergo a binding collision with other oxygen molecules to form two ozone molecules.
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1 mole of ozone weighs 48 g (molecular weight). It contains Avogadro number (N) of molecules. Each ozone molecule contains 3 oxygen atoms.
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Side effects Ozone gas has an odd number of atoms, which makes it unstable. This instability means it can be unpredictable. Healthcare providers take extreme caution when using ozone therapy. Being exposed to high concentrations of oxygen can damage red blood cells, so the measurements must be precise.
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The troposphere gets its heat from the ground, and so temperature decreases with altitude. Warm air rises and cool air sinks and so the troposphere is unstable. In the stratosphere, temperature increases with altitude. The stratosphere contains the ozone layer, which protects the planet from the Sun's harmful UV.
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Since in an exothermic reaction heat is released, the products will be more stable than the reactants. It's like saying that the products have less heat than the reactants.