define crude oil and what is the caloric value of hydrogen, wood, coal and petroleum
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Crude oil is a naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials.
Calorific values-
Hydrogen- 0.090
wood- 18,5
coal- 8,000
petroleum- 45.5
Calorific values-
Hydrogen- 0.090
wood- 18,5
coal- 8,000
petroleum- 45.5
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