Which of the following is not an environmental consequence of nuclear energy?
answer: the sound pitch (frequency) and the sound intensity (strength) of the car will decrease.
- as the distance between the source and the person increases, there must be more air molecules involved in transferring the sound leading to a decrease in the sound pitch (frequency “ number of sound waves received per second”).
- according to the inverse square law of sound “sound intensity is inversely proportional to the square of the distance between the source and the person”, as the distance between the source and person doubles, sound intensity (strength) will decrease to its quarter..
here, we have to get the effect of temperature, the reaction which is exothermic.
as the temperature increase the concentration of n₂o₄ will decrease and the formation of product will be favorable.
the left to right reaction is exothermic.
the reaction is n₂o₄⇄2no₂.
now the reaction from left to right has the heat of reaction 14 kcal. thus this reaction is exothermic.
as per thermodynamics δg = δh - tδs (where, δg = gibbs free energy, δh = heat of the reaction, δs = entropy and t = temperature).
for the favorable reaction δg must be negative. thus the reaction from left to right will be favorable. also as the temperature increase the rate of the reaction from left to right will increase.
the best and correct option is c