Question

What is the change in internal energy of a car if you put 12.0 gal of gasoline into its tank? The energy content of gasoline is 1.3×10⁸ J/gal. All other factors, such as the car’s temperature, are constant.

a) 1.56×10⁹ J
b) 1.80×10⁹ J
c) 2.02×10⁹ J
d) 2.25×10⁹ J

Answer 1

The change in internal energy of the car when 12.0 gal of gasoline is added to its tank is 1.56 × 10⁹ J.

Step-by-step explanation:

The change in internal energy of a car when 12.0 gal of gasoline is put into its tank can be calculated by multiplying the energy content of gasoline per gallon by the number of gallons added. In this case, the energy content of gasoline is 1.3 × 108 J/gal. Therefore, the change in internal energy of the car is:

Change in internal energy = (1.3 × 108 J/gal) × (12.0 gal) = 1.56 × 109 J