While calculating HCV, if we need to apply the fuse wire, acid and cooling corrections then what is the formula for HCV?(a) HCV = [(W + w)(t2-t1 + cooling correction)-(acid correction + fuse correction)]/weight of fuel(b) HCV = [(W + w)(t2+t1 + cooling correction)-(acid correction + fuse correction)]/weight of fuel(c) HCV = [(W + w)(t2-t1 + acid correction)-(cooling correction + fuse correction)]/weight of fuel(d) HCV = [(W + w)(t2+t1 + acid correction)-(cooling correction + fuse correction)]/weight of fuelI have been asked this question in a national level competition.My doubt stems from Dullong’s Formula topic in division Fuel Technologies of Applied Chemistry

While calculating HCV, if we need to apply the fuse wire, acid and coo

1.	While calculating HCV, if we need to apply the fuse wire, acid and cooling corrections then what is the formula for HCV?(a) HCV = [(W + w)(t2-t1 + cooling correction)-(acid correction + fuse correction)]/weight of fuel(b) HCV = [(W + w)(t2+t1 + cooling correction)-(acid correction + fuse correction)]/weight of fuel(c) HCV = [(W + w)(t2-t1 + acid correction)-(cooling correction + fuse correction)]/weight of fuel(d) HCV = [(W + w)(t2+t1 + acid correction)-(cooling correction + fuse correction)]/weight of fuelI have been asked this question in a national level competition.My doubt stems from Dullong’s Formula topic in division Fuel Technologies of Applied Chemistry
Answer» The correct OPTION is (a) HCV = [(W + w)(t2-t1 + cooling correction)-(ACID correction + fuse correction)]/weight of fuel The best explanation: The cooling correction must be added to the temperature difference because the heat loss is may be conduction, convection or radiation. The sum of acid and fuse corrections are subtracted because the heat PRODUCED by exothermic REACTIONS is already included in the change in temperature. So, it is to be subtracted to get HCV.

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