Thermodynamics questions
1906 published questions with worked solutions.
- The heats of neutralisation of CH_3-COOH , H-COOH , HCN and H_2S are -13.2, -13.4, -2.9 and -3.8 kcal/equivalent respectively....
- 2 moles of an ideal gas at 27 ^ is expanded reversibly from 2 litre to 20 litre. Find entropy change. (R = 2 cal/mol.K)
- Standard entropy for X_2 , Y_2 and XY_3 are 60, 40 and 50 J/K respectively. For the reaction 12 X_2 + 32 Y_2 XY_3 , H = -30 kJ,...
- Compounds with high heat of formation are less stable because ___________ [KCET 2002]
- S + 32 O_2 SO_3 + 2x kcal SO_2 + 12 O_2 SO_3 + y kcal Find out the heat of formation of SO_2
- The enthalpy change ( H) for the process N_2H_ 4(g) 2N_ (g) + 4H_ (g) is 1724 kJ ,mol^ -1 . If the bond energy of N - H bond in...
- Which of the following is NOT a state function? [AIIMS 2001, MH CET 2004]
- The heat change at constant volume for the decomposition of silver oxide is found to be 30.66 kJ. The heat change at constant...
- One mole of water at 100 ^ is converted into steam at 100 ^ at a constant pressure of 1 atm. The change in entropy is __________....
- H_ 2(g) + 12 O_ 2(g) H_2O_ (l) ; H_ 298 ,K = -68.32 kcal. Heat of vapourisation of water at 1 atm and 25 ^ is 10.52 kcal. The...
- The heat of neutralization of HCl by NaOH under certain condition is -55.9 kJ and that of HCN by NaOH is -12.1 kJ. The heat of...
- The bond dissociation energy of gaseous H_2 , Cl_2 and HCl are 104, 58 and 103 kcal/mole respectively. Enthalpy of formation of...
- The entropy of a perfectly crystalline solid at absolute zero is _______ [AMU 2000]
- The heat evolved during the combination of 24 g C and 128 g S following the change is _______. C + S_2 CS_2 ; H = 22.0 kcal
- The standard enthalpy of formation ( _fH^ ) at 298 K for methane, CH_ 4(g) is -74.8 kJ/mol. The additional information required...
- The difference between heat of reaction and change in internal energy at constant volume for the reaction given below at 25 ^ in...
- For the reaction X_2Y_ 4(l) 2XY_ 2(g) at 300 K the values of U and S are 2 kCal and 20 Cal K^ -1 respectively. The value of G for...
- When 50 cm^3 of 0.2 N H_2SO_4 is mixed with 50 cm^3 of 1 N KOH, the heat liberated is __________. (heat of neutralization = 57.32...
- The enthalpy change for a reaction does NOT depend upon the _______
- Which of the following does NOT result in increase in the entropy?
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