Question

1 mole of H₂ gas is contained in a box of volume V = 1.00 m³ at T = 300 K. The gas is heated to a temperature of T = 3000 K and the gas gets  converted to a gas of hydrogen atoms. The final pressure would be (considering all gases to be ideal)

(a) same as the pressure initially

(b) 2 times the pressure initially

(c) 10 times the pressure initially

(d) 20 times the pressure initially

Answer 1

Correct option (d) 20 times the pressure initially

Explanation :

According to gas equation PV = nRT

Here, T₂ = 3000 K, T₁ -= 300 K , Since H₂ splits into hydrogen atoms, therefore volume become half i.e .,