Thermodynamics questions
1906 published questions with worked solutions.
- For a given substance, T_1 and T_2 are the freezing point and melting point of the substance. Which of the graphs represents...
- Gibbs energy G, enthalpy H and entropy S are related by
- Which of the following have the same units? (i) Work (ii) Heat (iii) Energy (iv) Entropy
- The second law of thermodynamics introduced the concept of
- The G in the process of melting of ice at -15°C is
- For a reversible process at T=300 K, the volume of 2 mole of ideal gas is increased from 1 litre to 10 litre. The H for this...
- At 27°C, latent heat of fusion of a compound is 2930 J/mol. Entropy change during fusion is
- One mole of a non-ideal gas undergoes a change of state (2.0 atm, 3.0 L, 95 K) (4.0 atm, 5.0 L, 245 K) with a change in internal...
- For the precipitation of AgCl by Ag^+ ions and HCl
- At 1 atm pressure, S=75 JK^ -1 mol^ -1 ; H=30 kJ mol^ -1 . The temperature of the reaction at equilibrium is
- The matter has the highest entropy in
- In a reaction, H and S both are positive. In which of the following cases would the reaction not be spontaneous?
- For the process, CO_2(s) CO_2(g)
- The bond energies of F_2, Cl_2, Br_2 and I_2 are 155.4, 243.6, 193.2 and 151.2 kJ mol^ -1 respectively. The strongest bond is
- H for transition of carbon in the diamond form to carbon in the graphite form is -453.5 cal. This suggests that
- Heat evolved in the reaction, H_2+Cl_2 2HCl, is 182 kJ. Bond energies of H-H and Cl-Cl are 430 and 242 kJ/mol respectively. The...
- The heat of formation of methane, C(s)+2H_2(g) CH_4(g), at constant pressure is 18500 cal at 25°C. The heat of reaction at...
- Which compound will absorb the maximum amount of heat when dissolved in the same amount of water? (Integral heats of solution at...
- Standard heats of formation of CH_4(g), CO_2(g) and water at 25°C are -17.9, -94.1 and -68.3 kcal mol^ -1 respectively. Calculate...
- The heats of combustion of rhombic and monoclinic sulphur are 70.96 and 71.03 kcal. The heat of transition of S_R S_M is
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration