Moderate
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
Correct answer: B. 10
- A. 5
- B. 10
- C. 15
- D. 20
Explanation
The reaction produces 26 kg of acetylene from 64 kg of calcium carbide, so 1 kg gives about 0.406 kg, or roughly 353 L at NTP. Burning at 35 L/h gives 353/35, approximately 10 hours.
Written and checked by Zahid Hussain, MS Computer ScienceLast updated
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.