Physics 4B 031014

Today we discussed what a Carnot cycle was and different activites in activ phyiscs.  

 This is a picture of our Pressure versus Volume graph. Point A to B (C to D) is an isothermal process, B to C (D toA)  is an adiabatic process. For each transition (A to B) we could calculated: the Change in energy, Work and Heat energy. Errors are C is equal to 2496 J,  From B to C where Q = 0  resulting in a change in energy equal to Work -1243 J. From C to D: Q = 1825 J, W= -1823.8, change in Energy = 1.77 J. (D to A) Q = 0 , change in Energy = -W.    

Question 6: Heat and Temperature Change Numbers
 Record the heat transfer that has already occurred and the present temperature. Then RUN the simulation again and quickly stop it. Record the heat transferDQ and temperature again. Repeat the process several times. Use the numbers you have obtained to estimate the constant pressure molar specific heat capacity of this ideal gas. Calculated to be 20.78 J/mol/K.

Question 7: A More Accurate Heat Capacity Measurement

 Make an accurate calculation of the constant pressure molar heat capacity of the ideal gas. When you are finished, compare your answer to that of the Advisor. Our results for Cp was 20.775 J/mol/K

Our goal was to rearrange the above equation to result in 3/2R + R which turned out to be 20.77 J/mol/K

Out