Thermodynamics questions
1906 published questions with worked solutions.
- The pressure of an ideal gas varies with volume as P = αV, where α is a constant. One mole of the gas is allowed to undergo...
- The enthalpy of neutralisation of NH_4OH with HCl is −51.46 kJ mol^ -1 and the enthalpy of neutralisation of NaOH with HCl is...
- The door of a working refrigerator is left open in a well insulated room. The temperature of air in the room will
- An ideal monatomic gas with pressure P, volume V and temperature T is expanded isothermally to a volume 2V and a final pressure...
- One mole of an ideal gas is expanded isothermally and reversibly to half of its initial pressure. ΔS for the process in JK^ -1...
- A Carnot engine, whose efficiency is 40%, takes in heat from a source maintained at a temperature of 500 K It is desired to have...
- A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 37.0°C. As...
- Given: (I) H_2(g) + 12O_2(g) H_2O(l); H^ _ 298 K = -285.9 kJ mol^ -1 (II) H_2(g) + 12O_2(g) H_2O(g); H^ _ 298 K = -241.8 kJ mol^...
- An ideal gas at atmospheric pressure is adiabatically compressed so that its density becomes 32 times of its initial value. If...
- Which of the following statements/relationships is not correct in thermodynamic changes ?
- The catenation tendency of C, Si and Ge is in the order Ge < Si < C. The bond energies (in kJ mol^ -1 ) of C − C, Si − Si and Ge...
- In which of the following exothermic reactions, the heat liberated per mole is the highest ?
- For complete combustion of ethanol, C_2H_5OH(l) + 3O_2(g) 2CO_2(g) + 3H_2O(l), the amount of heat produced as measured in bomb...
- The standard enthalpy of formation of NH_3 is −46.0 kJ/mol. If bond enthalpy of H_2 is −436 kJ/mol and that of N_2 is −712...
- The correct order of bond dissociation energy among N_2, O_2, O_2^- is shown in which of the following arrangements?
- The molar heat capacity (C_p) of CD_2O is 10 cals at 1000 K. The change in entropy associated with cooling of 32 g of CD_2O...
- A Carnot engine absorbs 1000 J of heat energy from a reservoir at 127 °C and rejects 600 J of heat energy during each cycle. The...
- The (S^ ) of the following substances are: CH_4(g) 186.2 JK^ -1 mol^ -1 , O_2(g) 205.2 JK^ -1 mol^ -1 , CO_2(g) 213.6 JK^ -1 mol^...
- The standard enthalpy of formation ( _fH^ _ 298 ) for methane, CH_4 is −74.9 kJ mol^ -1 . In order to calculate the average...
- A monoatomic gas is compressed from a volume of 2 m^3 to a volume of 1 m^3 at a constant pressure of 100 N m^2. Then it is heated...
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