2007-01-27 17:40:41 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The BTU is an inexact unit, because multiple definitions exist, based on the energy required to raise the temperature of water that starts at different initial temperatures. But 1 BTU is approximately equal to 1.057 kJ, or 0.001057 MJ. (40000 BTU)*(0.001057 MJ/BTU) = 42.28 MJ. The result can vary by up to half a percent due to the inexactness of the definition.
2007-01-27 17:46:14 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
Just find the relation beteen btu and joule and subsitute into 40k btu.
2007-01-27 17:44:22 · answer #2 · answered by Dmitri B 1 · 0⤊ 0⤋
First answer is correct. I was going to say "about 40", but the response is exact.
2007-01-27 17:47:43 · answer #3 · answered by Anonymous · 0⤊ 0⤋
42.2022341
2007-01-27 17:44:00 · answer #4 · answered by Dashes 6 · 0⤊ 0⤋