A kilogram of hydrogen delivers about ___ times more energy than a kilogram of carbon. Power Engineering Chapter 44 A kilogram of hydrogen delivers about ___ times more energy than a kilogram of carbon. A. 4.28 B. 4.25 C. 4.26 D. 4.23 E. 4.27 Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+