What volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at constant temperature and pressure? The equation for the reaction is 2NH3(g) → N2(g) + 3H2(g)

A. 50cm³
B. 150cm³
C. 200cm³
D. 300cm³

Correct Answer: Option B

B. 150cm³

Explanation

According to the equation 2NH3 → N2 + 3H2

2×22400 cm³ of ammonia will produce 3x22400cm³ of hydrogen if 100cm³ of NH3 is used H2 volume = 100/2×22400 x 3 x22400 = 150cm³