Question 81
Hydrogen is used as fuel in hydrogen fuel cell vehicles (Figure 7.30). In a hydrogen fuel cell, hydrogen and oxygen combine to form water as the only product. Using hydrogen fuel helps to reduce our need to burn fossil fuels. Steam-methane reforming (SMR) is the most widely used process for making hydrogen. In SMR, methane from natural gas is heated with steam and a catalyst throughout the reaction. This produces a mixture of carbon monoxide and hydrogen.
Biogas contains methane and carbon dioxide. Suggest how the SMR process can help to reduce poverty. (Hint: Look back at the chapter opener on page 135.)
Biogas contains methane and carbon dioxide. Suggest how the SMR process can help to reduce poverty. (Hint: Look back at the chapter opener on page 135.)
