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At a road intersection in New Delhi, during the peak hour about 2500 vehicle ply per hour at an average speed of 30 kmph. Out of these, 50% of the car use leaded petrol. The average fuel consumption is one liter for an average of 10 km of travel. Considering that 60% of the lead present in the fuel is emitted in the form of a particulate aerosol, then the emission rate (in microgram/hours) of lead aerosol in the ambient air is 
(It is given that the concentration of lead in the fuel is 
  • a)
    3750
  • b)
    1065
  • c)
    1775
  • d)
    960
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
At a road intersection in New Delhi, during the peak hour about 2500 v...
Number of vehicles passing per hour at the intersection of the road = 2500 
Number of lead-emitting vehicles passing per hour on the road =  2500 × 0.50 = 1250 
Average fuel consumption by 1250 vehicles per hour  = 30kmph = 3Liter/hours
Total fuel consumption by 1250 vehicles per hour  = 1250 × 3 Liter/hour = 3750 Liter/hour
Since the total concentration of lead in the fuel =  
The total lead concentration in 3750 Liter/hour of used fuel
=   x 750Liter/hour = 1875μg/hr
 Since 60% of lead present in the fuel is emitted as a particulate aerosol, the lead aerosol released in the air = 1875 × 0.60 =
Hence,  of lead is released in the air as a particulate aerosol.
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At a road intersection in New Delhi, during the peak hour about 2500 vehicle ply per hour at an average speed of 30 kmph. Out of these, 50% of the car use leaded petrol. The average fuel consumption is one liter for an average of 10 km of travel. Considering that 60% of the lead present in the fuel is emitted in the form of a particulate aerosol, then the emission rate (in microgram/hours) of lead aerosol in the ambient air is(It is given that the concentration oflead in the fuel isa)3750b)1065c)1775d)960Correct answer is option 'B'. Can you explain this answer?
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