In: Chemistry
As of 2006 Goldemberg gives the estimates the remaining reserves of petroleum as 1.03 trillion barrels and an average consumption of 25.5 billion barrels per year. Put these numbers into Joules and Btu. Given these estimates as of 2006, how long will the reserves of oil last?
Reserve = 1.03 trillion barrels
Consumption = 25.5 billion barrel/year
Rate = reserve/time
time = reserve/rate
time = (1.03*10^9 barrels )/(25.5*10^6 barrels per year) = 40.39 years
Reserve are approx = 40.40 years, which assumes constant consumption.
a)
Change to BTU
Typically, we assume:
1 Barrel of Oil equivalent = 5551365.2248856 BTU= 5.55*10^6 BTU
consumption in BTU/y
C = 25.5*10^6 barrels / year * (5.55*10^6 BTU)/(barrels) = 1.415*10^14 BTU/year
change to J
1 BTU = 1055 J
1.415 BTU/y * 1055 J/BTU = 1.492*10^17 J/year
change reserve:
R = 1.03*10^9 barrels
R =1.03*10^9 barrels * (5.55*10^6 BTU)/(barrels) = 5.716*10^15 BTU
change BTU to J
5.716*10^15 BTU * 1055 J/BTU
R = 6.030*10^18 J