Question

In 2015 scandal involving Volkswagen's diesel cars, the "clean" performance exhibited during emissions testing resulted in lower mileage; for VW's diesel Jetta model, the drop was from 53mpg to 50mpg. If you own this car and drive 15,000 miles per year, by how much would (a) your annual fuel consumption and (b) you annual CO2 emissions increase if the car always operated in its "clean" mode? Give your answers in gallons of diesel fuel and tons of CO2. The estimate of CO2 released in burning 1 gallon of diesel = 8.5 kg or 19lbs

Answer 1

PART A:

Total distance covered during the year is

The fuel consumption rate is

So, fuel consumption in one year is

PART B:

The CO2 emission rate is

So, the CO2 emission in one year is ( in metric tons)

In Imperial tons