Statement 1: At 273 K, hydrogen and helium gases have positive slope at all pressure in PV vs P graph.
Statement 2: Boyle temperature of hydrogen and helium gases is less than 273 K.

Question

Statement 1: At 273 K, hydrogen and helium gases have positive slope at all pressure in PV vs P graph. Statement 2: Boyle temperature of hydrogen and helium gases is less than 273 K.

TestHub · Accepted Answer

Boyle temperatures are T B ≈ 110 K for H 2 and ≈ 23 K for He, both below 273 K — Statement 2 is correct. Above T B , repulsions dominate at all pressures, so Z > 1 and PV rises monotonically with P (positive slope everywhere) — Statement 1 is correct and is a direct consequence of II. Ans: (a).

Chemistry - Real Gas Question with Solution | TestHub

Options:

Doubts & Discussion