DieselShip's Online Content Library

Q8. (a) A gas expands in a cylinder according to the relationship PV^1.3 = 398.11.

The initial volume of the gas is 0.25 m³ and the work done by the gas during the expansion is 770 J.

Calculate the final volume of the gas. (8)

Note: the work done by the gas W, as it expands from V₁ to V₂ units of volume is:

(b) Given dy/dx = 9x² + 4x - 5 - 4/x² and y = 24 when x = 2,

determine the value of y when x = 4. (8)