Q12.27Multiple choice
Consider one mole of perfect gas in a cylinder of unit cross section with a piston attached (Fig. 12.12). A spring (spring constant k) is attached (unstretched length L ) to the piston and to the bottom of the cylinder. Initially the spring is unstretched and the gas is in equilibrium. A certain amount of heat Q is supplied to the gas causing an increase of volume from Vo to V1.
This question refers to a figure in the original PDF.
- (a)What is the initial pressure of the system?
- (b)What is the final pressure of the system?
- (c)Using the first law of thermodynamics, write down a relation between Q, Pa, V, Vo and k. Fig. 12.12