thermodynamics

  1. Deriving heat capacity in terms of internal energy U and natural variables S & V

  2. What causes the "Gd break" in the trend of lanthanide-EDTA formation constants?
  3. Change in Gibbs Energy for the Haber Process

  4. Apparent contradiction in the type of deviation of an ethanol-water mixture

  5. MOLARITY OF SOLUTIONS

  6. Please help in this thermodynamics numerical?

  7. What would be the enthalpy change for a isothermal expansion?
  8. standard states and chemical potentials

  9. what does lower case delta mean in this equation? help with derivation?
  10. How do the pressure acting on the reactants and the initial temperature of the reactants affect the enthalpy of reaction?

  11. If equilibrium constant K is greater-than-1/less-than-1, can we automatically assume Delta G is going to be negative/positive, respectively?

  12. Why are there two contradicting formulas for Enthalpy (Delta H):
  13. Is a person warmed by fire an example of endothermic reaction?
  14. Is heat an extensive or intensive property?

  15. Why does chemisorption increase with rise in temperature, even though it is an exothermic process?

  16. Why at constant pressure and temperature Gibbs energy change of a process can be negative?

  17. Chemical Equilibrium

  18. Finding Overall Entropy Change

  19. Derivation of the Temperature Dependence of the Boltzmann Distribution
  20. Can carbon subnitride be used as a fuel with similar properties to gasoline?
  21. Why don't we add liquid or solid in our equilibrium constant?

  22. How does change in entropy influence the tendency of a reaction to occur?

  23. Enthalpy change of zinc oxide with hydrochloric acid

  24. Chemical potential of mixtures of ideal gases and the Gibbs-Duhem equation
  25. Isothermal compression at critical temperature

  26. What is the difference between temperature and thermodynamic temperature?
  27. Work done during dissolution of carbides
  28. Why do we neglect the zero point energy in statistical mechanics?

  29. Why is entropy measured in J/K?

  30. How can endothermic reactions be spontaneous?
  31. Why does increasing the pressure cause ice to melt more?

  32. Finding direction of the reaction using Affinity of the reaction
  33. What would happen to a diamond in the presence of oxygen and elevated temperature and how fast?

  34. How to calculate the activation energy of diffusion of carbon in iron?

  35. slow down ice melting in water

  36. How is work converted to heat?
  37. Why don't we consider VΔP when we define Q?
  38. Can entropy increase during bond formation?

  39. Variation of equilibrium constant

  40. The confusion of entropy change
  41. Equlibrium for a non-spontaneous reaction

  42. The entropy change during micellization

  43. Why is the enthalpy of a reaction equal to the difference between the enthalpies of combustion of the reactants and the products?

  44. Why is Aluminium Carbonate unstable?
  45. Does an increase in pressure necessarily lead to an increase in temperature?

  46. Is the standard enthalpy of formation always non-positive?
  47. What exactly does the "per mole" unit of heat of atomization mean?

  48. Are all reactions with ΔG < 0 spontaneous?
  49. Why is the standard enthalpy of formation of black phosphorus not zero?

  50. Why is the enthalpy change not zero in an adiabatic process?

  51. In what approximations, if any, can we assume a constant temperature in a Bomb calorimeter?

  52. Dropping Borosilicate glass mug

  53. What is the reason behind the phenomenon of Joule-Thomson effect?

  54. How does pH change during the electrolysis of water?

  55. Do endothermic reaction have higher energy products than reactants?

  56. Thermodynamics energy balance question help

  57. Is this a valid method to find percentage of pure ethanol in an impure sample?

  58. What are the signs for work done by (on?) a gas during isothermal reversible compression?

  59. Can pressure remain constant in isothermal expansion?
  60. Deriving a relation between entropy, volume and particles through the chemical potential
  61. Themochemistry-unknown metal
  62. Standard free energy and cell potential relationship for Pentane-Oxygen fuel cell

  63. What are the degrees of freedom (from Gibbs phase rule) for an azeotropic mixture?
  64. Entropy of universe for non spontaneous processes

  65. Is dH work dependent?

  66. Relating the "reversibility" of equilibrium to that of thermodynamics
  67. Enthalpy and Internal Energy for Isothermal Expansion

  68. How do you calculate molar specific heat?

  69. Diamond oxidation without input of energy
  70. Standard state of a substance - definition

  71. What is the difference between enthalpy of reaction and standard enthalpy?
  72. Why does increasing temperature for an endothermic reaction always increase equilibrium constant?
  73. Can a droplet of formalin evaporate in midair while falling?

  74. Thermodynamics adding salt to water changes the temperature

  75. Enthalpy of formaton

  76. Difference between reversible and irreversible processes

  77. Le Châtelier's Principle and heat
  78. Why might copper have a lower heat capacity than lithium according to the Shomate Equation?
  79. Is chemical equilibrium possible at any temperature and pressure?
  80. Formula of entropy change

  81. How would one calculate the entropy change for an adiabatic irreversible process?
  82. Would a reaction always occur if the change in its Gibbs free energy is negative?

  83. Equation to calculate the triple point
  84. What are the degrees of freedom?

  85. Work done by irreversible expansion of gas against piston of fixed pressure
  86. Is a low specific heat capacity for the material of the calorimeter good or bad?
  87. Calculating new volume during expansion of an ideal gas

  88. Heat capacity of mixtures
  89. Calculating Entropy

  90. Which reaction to use for standard formation enthalpy?

  91. Work equation in thermodynamics
  92. Reactivity of propellanes
  93. Effect of temperature and Le Chatelier's principle

  94. Is the heat capacity infinite for a process at constant temperature?

  95. Is not possible to find absolute value of internal energy?

  96. Differences in Gibbs activation energies for rotation around a bond
  97. Calculating change in entropy without absolute entropies

  98. Is there a general consensus on the causes of the alpha-effect?

  99. Steric Hindrance and Brønsted Basicity
  100. How to calculate the heat capacity of a calorimeter?