Energy Unit Conversions

Question

A tank contains 386 gallons of oil. This is the equivalent of 5.65×10⁷ kJ of energy. How many kWh of energy does this oil represent?

Answer 1

Hello, Natalie,

We need a conversion factor to change Joules into kilowatt-hours. I found the following:

E_(J) = 3600000 ⋅ E_(kWh) (It is expressed in J, not kJ)

Convert kJ into J:

5.65E+07 kJ is

5,65E+10 J

So (5.65E+10 Joules) x (1kWh/3.6E+06 J) = 1.57E+04 kWh

Bob