Physical chemistry problems
1-Draw the complete PV diagram and calculate q, w, deltaH, deltaU, and deltaS for a process in which 1 mole of an ideal monatomic gas undergoes reversible isothermal compression from 10 dm3 to 1 dm3 at an initial temperature of 300 K.
2-Draw the complete PV diagram and calculate q, w, deltaH, deltaU, and deltaS for a process in which 1 mole of an ideal monatomic gas undergoes irreversible expansion from 10 dm3 to 1 dm3 at a constant pressure of 1 bar.
3-Draw the complete PV diagram and calculate q, w, deltaH, deltaU, and deltaS for a process in which 1 mole of an ideal gas is compressed reversibly from 10 dm3 to 5 dm3 at a constant pressure of 1 bar. This particular gas has a heat capacity given by: CPm = [29.75 25.1×10-3 (T)] JK-1mol-1.
4-Draw the complete PV diagram and calculate q, w, deltaH, deltaU, and deltaS for a process in which 0.1 moles of ammonia gas is compressed reversibly from 10 dm3 to 1 dm3 at a constant pressure of 2 bar. Treat ammonia (NH3) as a van der Waal’s gas with a = 0.4169 Pa m6 mol-2 and b = 3.71 x 10-5 m3 mol-1 and CpM = 29.75 25.1×10-3 (T) – 1.55×105 (T-2 ) JK-1mol-1
5-What is deltaG for the following reaction at 45ºC and 1 bar pressure? CH4(g) O2(g) → CH2O(g) H2O(l)