UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper II
Q2(b). Boyle temperature of helium
Question
Find the Boyle temperature for van der Waals He with a=0.0341 atm dm⁶ mol⁻² and b=2.38×10⁻² dm³ mol⁻¹.
Answer in brief
TB=17.46 K.
Part of VKC Basic
Read the key points and the full model answer with VKC Basic
VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.
The full model answer
As written for the answer booklet: the diagram carries the working, the lines stay short. Read here only; it is not offered as a download.
The handwritten model answer pages open with the VKC plan.
CoversBoyle temperature of heliumReal gases
All parts of Question 2
- 2(a) Logarithmic ideal-gas plot5 marks
- 2(b) Boyle temperature of helium5 marks