Final answer:
It is true that hydrogen is commercially produced from the reaction of methane and water vapor through the process of steam reforming of methane at high temperatures.
Step-by-step explanation:
It is true that hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. This process is referred to as steam reforming of methane. The equation for the reaction is:
CH4 (g) + H2O(g) ⇒ 3H2(g) + CO(g)
The production of hydrogen through this method is very common in industrial settings, especially when there is an abundance of natural gas. This process occurs at high temperatures, often in the range of 700°C to 1100°C, and typically in the presence of a nickel-based catalyst.
Furthermore, the hydrogen produced may often undergo a water-gas shift reaction, which converts more carbon monoxide and water into carbon dioxide and additional hydrogen, optimising the yield of hydrogen for commercial use.