Thermodynamics questions
1906 published questions with worked solutions.
- Boiling point of a liquid is 50 K at 1 atm and H_ vap. =460.6 cal mol^ -1 . What will be its b.p. at 10 atm?
- The work done in an open vessel at 300 K, when 112 g iron reacts with dil. HCl, is
- In a chemical reaction H=150 kJ and S=100 JK^ -1 at 300 K. The G for the reaction is
- In which of the following cases does entropy decrease?
- All the naturally occurring processes, i.e., spontaneous processes, proceed spontaneously in a direction which leads to
- Which is an extensive property of the system?
- Three moles of an ideal gas is expanded spontaneously into vacuum. The work done will be
- One mole of a gas absorbs 200 J of heat at constant volume. Its temperature rises from 298 K to 308 K. The change in internal...
- Which reaction, whether endothermic or exothermic, has the greater chance of occurring spontaneously?
- In which case is a spontaneous reaction possible at any temperature?
- A reaction occurs spontaneously if
- For vaporization of water at 1 atmospheric pressure, the values of H and S are 40.63 kJ mol^ -1 and 108.8 JK^ -1 mol^ -1 ,...
- Entropy decreases during
- The entropy change for vaporisation of liquid water to steam at 100°C is ... JK^ -1 mol^ -1 . Given that heat of vaporisation is...
- Which of the following are not state functions? (I) q+w (II) q (III) w (IV) H-TS
- A system is changed from state A to state B by one path and from B to A by another path. If U_1 and U_2 are the corresponding...
- For a reaction at 25°C, enthalpy change ( H) and entropy change ( S) are -11.7 10^3 J ,mol^ -1 and -105 J ,mol^ -1 K^ -1...
- The change in entropy, S, is positive for an endothermic reaction. If the enthalpy change H occurs at the same temperature T,...
- Which species have a negative value of specific heat?
- If the enthalpy change for the transition of liquid water to steam is 30 kJ mol^ -1 at 27°C, the entropy change for the process...
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