Question:
Figure. Shows a cylindrical container containing oxygen $(\gamma=1.4)$ and closed by aa $50 \mathrm{~kg}$ frictionless piston. The area of cross section is $100 \mathrm{~cm}^{3}$, atmospheric pressure is $100 \mathrm{kPa}$ and $\mathrm{g}$ is $10 \mathrm{~m} / \mathrm{s}^{2}$. The cylinder is slowly heated for some time. Find the amount of heat supplied to the gas if the piston moves out through a distance of $20 \mathrm{~cm}$.
Solution:
