Concept explainers
Interpretation:
The region of earth’s atmosphere has to be explained.
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Explanation of Solution
Troposphere:
It is the layer of earth atmosphere which has eighty percent of the net mass of air and atmosphere’s water vapour. Troposphere in which lightning, hurricanes and rain occurs and it is the thinnest layer ten kilometres of atmosphere.
Stratosphere:
It is a region of earth atmosphere which is above troposphere and it consists of nitrogen, oxygen, and ozone. The temperature increases with rise in altitude. UV radiation from sun causes exothermic reaction which gives ozone as product.
Mesosphere:
It is the layer of earth atmosphere which is above stratosphere, where ozone and other gases are low in concentration. The increase in altitude increases temperature.
Ionosphere:
It is top most layer of earth atmosphere. Bombardment of oxygen, nitrogen, electrons and protons results in increase of temperature. It is also known as ionosphere.
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Chapter 20 Solutions
AVC LOOSELEAF CHEMISTRY W/CONNECT 2 SEM
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- For which reaction below does the enthalpy change under standard conditions correspond to a standard enthalpy of formation? (Choose all that applies) SO2(g) + 1/2 O2(g) → SO3(g) 2H2(g) + C(s) → CH4(g) Mg(s) + 1/2 O2(g) → MgO(s) CO(g) + H2O(g) → CO2(g) + H2(g) CO2(g) + H2(g) → CO(g) + H2O(g) 1/2 H2(g) + 1/2 N2(g) + 3/2 O2(g) → HNO3(g) CO2(g) + C(s) 2CO(g) N2(g) + 202(g) → 2NO2(g)arrow_forwardChoose all the molecules with zero standard-enthalpy-of-formation (AH% = 0) Fe(s) FeCl2(s) N2(g) H2O(l) 02(g) C(graphite) K(s) H2O(g)arrow_forward8.5 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 125 g of water and the temperature of the solution increases by 15.58°C. Calculate the AH soln for potassium hydroxide. Assume the specific heat capacity of the solution is 4.2 J.g¨¹.ºC-1. KOH(s) → →K+ K(aq) + OH AH solution = ?kJ/mol (aq)arrow_forward
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