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(1)assuming that the density of water is independent of pressure in the range 1 to 5 bar at 100C. what is the change in molar Gibbs energy of water when the temperature is raised this amount?

(2) an ideal gas is compressed isothermally from 1 to 5 bar at 100C(a) what is the molar Gibbs energy change? (b)what would have been the change in molar Gibbs energy if the compression had been carried out at 0c

(3)at 298k for H2(g) S=130.684JK ?H=0KJMol and ?G=0kjmol. what are the values for molar entropy, enthalpy of formation and Gibbs energy of formation at 10 to power of -2bar, assuming that H2 is an ideal gas?

(4)the heat of vaporization of liquid oxygen at 1.01325bar is 6820JMol at its boiling point -183C, at that pressure. For reversible vaporisation of liquid oxygen, calculate (a) q per mole (b) ?U (molar) (c)?S(molar) (d) ?G(molar)

an ideal gas is expanded isothermally and reversibly at 0c from 1 to 1/10 bar. calculate (a) w per mole (b)q per mole (c) ?H (d)?G(molar) (e)?S(molar) for one mole of an ideal gas in 22.71L is allowed to expand irreversibly into an evacuated vessel such that the final total volume is 227.1L calculate (f) w per mole (g)q per mole (h)?H(molar) (i)?G(molar) and ?S(molar) for the gas calculate(k)?S(molar) for the system and the surrounding involved in the reversible isothermal expansion and calculate(l) ?S(molar) for the system and its surrounding involved irreversible isothermal expansion in which the gas expand into an evacuated vessel such that thefinal total

volume is 227.1

(5) steam is compressed reversibly to liquid water at the boiling point of 100c the heat of vaporisation of water at 100c is 2258Jg . calculate w per mole and q per mole and each of the thermodynamics quantities (molar)?H ?U ?G ?A and ?S

(6)an ideal gas is compressed reversibly at 100barfrom 2 to 10bar. calculate ?H ?S and ?G show that you can get thesame value of ?G in two ways

(7) what is the change in molar Gibbs energy for the freezing of water at -10c? the vapour pressure of H2o (l-10c) is 286.5 pa and the pressure of H2o (s -10) is 260 pa At -10c the molar volume of ice is 2Ã—10 to the power of -5m3mol

(8)calculate the ?G and ?S for the mixing of 2 moles of H2 with 1mole of O2 at 25 c and under condition where no chemical reaction occurs

(9)liquid water can be superheated to 120c at 1.01325 barcalculate the changes in entropy enthalpy and Gibbs energyfor the process of superheated at 120c and 1-01325bar changing to the same temperature and pressure. the enthalpy of vaporization is 40.58KJMol at 100c and 1.101325bar . given cp(H2o)=75.3JKmol and cp(H2o, g)=36+0.013T)JKMolwhere T is kelvin

(10) How many degree of freedom are there for the following system and how might they be chosen

(a)CUSO4.5H2O in equilibrium with CUSO4 and H2o

(b) N2O4 in equilibrium with NO2 in the gas phase

Â©CO2, CO, H2O,and H2 in chemical equilibrium in gas phase

(d) the system described in c made up with stoichiometric amount of CO and H2

(11) graphite is in equilibrium with gaseous H2o, CO, CO2, H2 and CH4.How many degree of freedom are there? what degree of freedom might be chosen for an equilibrium calculation?

(12)a gaseous system contain CO, CO2, H2, H2O, and C6H6 in chemical equilibrium (a) how many component are there? (b) how many independent reactions? (c)how many degree of freedom are there

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