Thermodynamics questions
1906 published questions with worked solutions.
- Calculate S total for a certain reaction at 298 K if H^0 = -208.6 kJ and S^0 = -36 JK^ -1
- Calculate the change in internal energy of the system if 20 kJ of work is done on the system and it releases 10 kJ of heat in a...
- Which from following reactions performs zero work?
- An ideal gas having pressure P, volume V and temperature T undergoes a thermodynamic process in which dW = 0 and dQ < 0. Then,...
- Which from following is NOT a state function ?
- Which of the following is the correct decreasing order of bond dissociation enthalpy of halogens ?
- Calculate the work done for the following reaction at 27 ,^ C C_2H_ 4(g) + H_ 2(g) C_2H_ 6(g) (R = 8.314 J ,K^ -1 ,mol^ -1 )
- A gas at normal temperature is suddenly compressed to one-fourth of its original volume. If Y =1.5, then the increase in the...
- In a cyclic process, work done by the system is
- Calculate the standard enthalpy change of following reaction. C_2H_ 4 ,(g) + 3O_ 2 ,(g) 2CO_ 2 ,(g) + 2H_2O_ ( ) If _f...
- A diatomic gas ( = 7 5 ) is compressed adiabatically to volume V_0 32 , where V_0 is its initial volume. The initial temperature...
- Calculate the enthalpy of vaporisation of ethanol if 11.5 g of ethanol is completely vaporized by supplying 11.8 kJ of heat
- The efficiency of Carnot engine which operates between the two temperatures = T_1 = 500 K and T_2 = 300 K is
- The enthalpy of combustion of C, H_2 and CH_4 are -390, -285 and -890 kJ/mol. Find the enthalpy of formation of methane
- An ideal rigid diatomic gas ( = 7 5 ) undergoes an adiabatic change . If the relation between temperature and volume is TV^ X =...
- Calculate G^0 for reaction, CH_ 4(g) + H_ 2(g) C_2H_ 6(g) (K_P = 2 x 10^ 17 , R = 8.314 J K^ -1 mol^ -1 )
- Identify the law for the statement "Overall the enthalpy change for a reaction is equal to sum of enthalpy changes of individual...
- A Carnot engine has efficiency 1 6 . It becomes 1 3 , when the temperature of sink is lowered by 57 K. The temperature of the...
- Calculate standard enthalpy change of reaction C_2H_ 2(g) + 5 2 O_ 2(g) 2 ,CO_ 2(g) + H_2O_ ( ) if _f H^ ( CO_2 ) = -393 kJ ,mol^...
- An engine operating between temperatures T_1 and T_2 has efficiency 15. When T_2 is lowered by 45 K, its efficiency becomes 12....
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