Reference no: EM13851922
1.) Derive the cat constant temperature, constant volume and constant pressure. Note: These are three separate expressions.
2.) Calculate the change in entropy when 50 g of water at 80 oC is poured into 100 g of water at 10 oC in an insulated vessel given that Cp, m - 75.5 JK-1 mol-1.
3.) Calculate the change in entropies of the system and the surroundings, and the total change in entropy, when a sample of nitrogen gas of mass 14 g at 298 K and 1 bar doubles its volume in (a) an isothermal reversible expansion, (b) an isothermal irreversible expansion against pex = 0, and (c) an adiabatic reversible expansion.
4.) Calculate (a) the maximum work and (b) the maximum non-expansion work that can be obtained from the freezing of supercooled water at - 5 oC and 1.0 atm. The densities of water and ice are 0.999 g cm3 and 0.917 g cm3, respectively at - 5 oC.
5.) Consider a system in thermal equilibrium, with its surroundings at temperature, T. Use the Clausius inequality to derive a differential expression for the Helmhlotz energy (A) and Gibbs energy (G).
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