STANDARDChemistry-States of Matter
STANDARD Chemistry Ideal Gas Laws MCQ Question
Type: MCQ-numerical-Hard
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
Correct Answer
Option D
Detailed Explanation
Initially, the gas is H₂, but at 3000 K, it dissociates into 2 moles of H atoms. The pressure is proportional to the number of moles and temperature, so the final pressure is 20 times the initial pressure.
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