Thermodynamics questions
1906 published questions with worked solutions.
- The standard entropy change for the reaction : 4Fe(s) + 3O_ 2 (g) 2Fe_ 2 O_ 3 (s) is −550 J K^ -1 at 298 K. [Given: The standard...
- The standard free energy change ( G^ ) for 50% dissociation of N_ 2 O_ 4 into NO_ 2 at 27°C and 1 atm pressure is −x J mol^ -1 ....
- For the reaction H_ 2 F_ 2 (g) H_ 2 (g) + F_ 2 (g), U = −59.6 kJ mol^ -1 at 27°C. The enthalpy change for the above reaction is...
- A monoatomic gas at pressure P and volume V is suddenly compressed to one eighth of its original volume. The final pressure at...
- 2.4 g coal is burnt in a bomb calorimeter in excess of oxygen at 298 K and 1 atm pressure. The temperature of the calorimeter...
- A heat engine operates with the cold reservoir at temperature 324 K. The minimum temperature of the hot reservoir, if the heat...
- The efficiency of a Carnot's engine, working between steam point and ice point, will be
- For complete combustion of methanol CH_ 3 OH(l) + (3/2)O_ 2 (g) CO_ 2 (g) + 2H_ 2 O(l), the amount of heat produced as measured...
- A sample of a gas with = 1.5 is taken through an adiabatic process in which the volume is compressed from 1200 cm^2 to 300 cm^3....
- A Carnot engine operating between two reservoirs has efficiency 1 3 . When the temperature of cold reservoir raised by x, its...
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Cu^ 2+ in...
- The correct order of bond enthalpy (kJ mol^ -1 ) is
- 0.3 g of ethane undergoes combustion at 27°C in a bomb calorimeter. The temperature of calorimeter system (including the water)...
- A sample of a gas at temperature T is adiabatically expanded to double its volume. The work done by the gas in the process is...
- At 25°C, the enthalpy of the following processes are given H_2(g)+O_2(g) 2OH(g) H^0 = 78 kJ mol^ -1 ; H_2(g)+ 1 2 O_2(g) H_2O(g)...
- Ion having highest hydration enthalpy among the given alkaline earth metal ions is:
- Consider the following data Heat of combustion of H_2(g) = –241.8 kJ mol^ -1 Heat of combustion of C(s) = –393.5 kJ mol^ -1 Heat...
- The bond energy (in kcal mol^ -1 ) of a C–C single bond is approximately
- Among the following, the intensive property is (properties are)
- A diatomic ideal gas is compressed adiabatically to 1 32 of its initial volume. In the initial temperature of the gas is T_i (in...
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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