the calorific value of biodeisel is 150kJ/g
Out of the 200KJ input, 150KJ isn't usable. The only usable output of themachine is the remaining 50KJ.The efficiency of that machine is 50KJ/200KJ = 25% .It must be pointed out, though, that it all depends on your definition of what isusable and non-usable output. For example, if this machine were labeled as an"Office Space Heater", then the 150KJ of heat would be the usable output, andthe efficiency would have been 75% .
Molar heat of combustion of ethanol = -1366.8 kJ/mol C2H5OH
lactic acid is the end product of anaerobic respiration in animal cells. anaerobic respiration in animal cells is represented by the formula: - C6H1206----->2ch3ch(oh)cooh+2ATP(150kJ) energy