The calorific value of 'LPG' (50% propane + 50% butane) is about ______________ kcal/Nm3?
Correct answer: B. 25,000
- A. 5000
- B. 25,000
- C. 10,000
- D. 15,000
Explanation
Propane has a heating value of roughly 22,000 kcal/Nm³ and butane about 29,000 kcal/Nm³, so an equal mixture is approximately 25,000 kcal/Nm³. Thus option b is the closest value.
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