Question

Propane can be turned into hydrogen by the two-step reforming process. In the first step, propane and water react to form carbon monoxide and hydrogen: (g)(g)(g)(g) In the second step, carbon monoxide and water react to form hydrogen and carbon dioxide: (g)(g)(g)(g) Write the net chemical equation for the production of hydrogen from propane and water. Be sure your equation is balanced.

Answer 1

To produce hydrogen from propane and water via the two-step reforming process, the balanced net chemical equation is C3H8 + 4H2O (g) → 3CO2 (g) + 10H2 (g). This shows that propane and water react to ultimately form hydrogen and carbon dioxide.

Step-by-step explanation:

The student is asking us to write a balanced chemical equation for the production of hydrogen from propane and water, involving a two-step reforming process. The two reactions can be represented and balanced as follows:

First Step: C3H8 + 3H2O (g) → 3CO (g) + 7H2 (g)

Second Step: CO (g) + H2O (g) → CO2 (g) + H2 (g)

If you multiply the second equation by 3 (to match the amount of CO produced in the first step), you get:

3CO (g) + 3H2O (g) → 3CO2 (g) + 3H2 (g)

Adding both steps together will yield the net equation:

C3H8 + 4H2O (g) → 3CO2 (g) + 10H2 (g)

This equation represents the overall process of producing hydrogen and carbon dioxide from propane and water. When this reaction takes place, nickel-based catalysts are often used to help facilitate the process, turning propane, which is a type of hydrocarbon, into a mixture of hydrogen and carbon monoxide, and subsequently into hydrogen and carbon dioxide.

Answer 2

C₃H₈(g) + 6 H₂O(g) ⇒ + 10 H₂(g) + 3 CO₂(g)

Step-by-step explanation:

Propane can be turned into hydrogen by the two-step reforming process.

In the first step, propane and water react to form carbon monoxide and hydrogen. The balanced chemical equation is:

C₃H₈(g) + 3 H₂O(g) ⇒ 3 CO(g) + 7 H₂(g)

In the second step, carbon monoxide and water react to form hydrogen and carbon dioxide. The balanced chemical equation is:

CO(g) + H₂O(g) ⇒ H₂(g) + CO₂(g)

In order to get the net chemical equation for the overall process, we have to multiply the second step by 3 and add it to the first step. Then, we cancel what is repeated.

C₃H₈(g) + 3 H₂O(g) + 3 CO(g) + 3 H₂O(g) ⇒ 3 CO(g) + 7 H₂(g) + 3 H₂(g) + 3 CO₂(g)

C₃H₈(g) + 6 H₂O(g) ⇒ + 10 H₂(g) + 3 CO₂(g)