Q14(b). Pressure of CO₂ from the reduced van der Waals equation
Using the law of corresponding state for a van der Waals gas, calculate pressure exerted by one mole of carbon dioxide at 40 °C confined to a volume of 0.107 dm³. (For carbon dioxide Pc = 73.0 atm; Vc = 0.0957 dm³; Tc = 304 K)
Model answer
The free solution for 2022 answers questions 1, 2, 3, 4, 6, 7, 10, 12, 13 and 15, the ones picked in its time plan. Question 14 is answered in full in the Geo-Scientist Chemistry Paper II, 2021 to 2025 book, with every part of every paper.
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UPSC Combined Geo-Scientist (Main) Chemistry Paper II: Model Answers 2021 to 2025
- All fifteen questions of each paper, with the question printed above its answer
- Numericals worked from formula to result with units; graphs with labelled axes
- Topic-wise weightage and a topic-wise index
Coverslaw of corresponding statesreduced van der Waals equationcarbon dioxidereduced variablescritical constants
All parts of Question 14
- 14(a) BET equation and the surface area of a powdered catalyst10 marks
- 14(b) Pressure of CO₂ from the reduced van der Waals equation10 marks