A gas is kept in a container having walls which are thermally non-conducting. Initially the gas has a volume of 800~cm³$800~\mathrm{cm}^3$ and temperature 27°C$27^{\circ}\mathrm{C}$ . The change in temperature when the gas is adiabatically compressed to 200~cm³$200~\mathrm{cm}^3$ is: (Take γ = 1.5$\gamma = 1.5$)
Always read carefully to see if the question asks for the final temperature or the change in temperature. Many students lose marks by choosing 600~K$600\mathrm{~K}$ (the final temperature) instead of the difference 300~K$300\mathrm{~K}$! Stay sharp.
Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.
