Question

2H2(g) + 2NO(g) → 2H2O(g) + N2(g)

As Reaction 1 proceeds, the pressure in the reaction chamber will:

A. decrease.
B. increase.
C. first decrease, then increase.
D. first increase, then decrease.

Answer 1

In the given reaction, the change in pressure does not favor the formation or decomposition of gaseous nitrogen monoxide. Therefore, the pressure in the reaction chamber will remain the same.

Step-by-step explanation:

In the given reaction, 2H2(g) + 2NO(g) → 2H2O(g) + N2(g), the number of molecules remains the same before and after the reaction. Therefore, the change in pressure does not favor the formation or decomposition of gaseous nitrogen monoxide (NO). As a result, the pressure in the reaction chamber will remain the same, leading to option E: No change in pressure.