The number of ways in which the particles can be distributed in space is related to the concept of the thermodynamic property: (A) Thermal entropy (B) Degree of mixed-up-ness (C) Enthalpy (D) Configuration entropy Which activity coefficient is an indication of a eutectoid solid solution? (A) 0 (B) 0.5 (C) 1.0 (D) 1.5 The enthalpy of PbO is 219KJ/ mole at 298K.Cp of the reaction Pb+1/2O2PbO is 10J/ mole- K for T=298500K. What is H for the reaction at 398K ? (A) 218KJ (B) 10ln(398/298)J (C) 1000J (D) 1500J (E) Not available from the provided data Indicate the wrong statement for the properties of ideal gas (A) no heat needed in an isothermal reversible expansion process (B) internal energy does not depend on pressure (C) internal energy does not depend on volume (D) internal energy depends only on the temperature