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 ?

Question

Accepted Answer

10. The ratio of gas produced to carbide used is 0.41 kg / 1 kg = 0.41 kg gas per kg carbide. Total hours = (Total gas available / Gas rate) * (Carbide mass / Gas produced by that mass).