Thermodynamics questions
1906 published questions with worked solutions.
- Given that H_1(H) = 218 kJ/mol, express the H - H bond energy in kcal/mol
- The sublimation energy of I_2(s) is 57.3 kJ/mol and the enthalpy of fusion is 15.5 kJ/mol. The enthalpy of vaporisation of I_2 is
- The enthalpy of reaction, H_2(g) + 1 2 O_2(g) H_2O(g) is H_1 and that of H_2(g) + 1 2 O_2(g) H_2O(l) is H_2. Then
- The heat of neutralisation is highest for the reaction between
- The H - H bond energy is 430 kJ mol^ -1 and Cl - Cl bond energy is 240 kJ mol^ -1 , H for HCl is -90 kJ. The H - Cl bond energy...
- Heat of formation of SO_2 is -298 kJ. What is the heat of combustion of 4 g of S ?
- The quantity of heat measured for a reaction in a bomb calorimeter is equal to
- Heat capacity (C_p) is an extensive property but specific heat (C) is an intensive property. What will be the relation between...
- The heat of neutralisation of a strong acid and a strong alkali is 57.0 kJ mol^ -1 . The heat released when 0.5 mole of HNO_3...
- A cylinder of gas is assumed to contain 11.2 kg of butane ( C_4H_ 10 ). If a normal family needs 20000 kJ of energy per day, the...
- Calculate the enthalpy change on freezing of 1.0 mole of water at 10.0^ to ice at -10.0^ . [ _ fus H = 6.03 kJ mol^ -1 at 0^ .]...
- If 900 J/g of heat is exchanged at boiling point of water then increase in entropy is
- The heat of atomisation of methane and ethane are 360 kJ/mol and 620 kJ/mol, respectively. The longest wavelength of light...
- Energies required to break the individual C-H bonds in each successive step differ CH_4(g) CH_3(g) + H(g); _ bond H^ = 427 kJ...
- A reaction takes place in a several sequential steps A, B, C and D. The value of enthalpy change for sequential steps are p, q, r...
- The ....(i).... of a system can be changed by transfer of heat from the surrounding to the system or vice-versa without...
- The heat of reaction for C_ 10 H_8(s) + 12O_2(g) 10CO_2(g) + 4H_2O(l) at constant volume is -1228.2 kcal at 25^ . The heat of...
- If the bond dissociation energies of XY, X_2 and Y_2 (all diatomic molecules) are in the ratio of 1 : 1 : 0.5 and H_f for the...
- The value of H for cooling 2 moles of an ideal monoatomic gas from 225^ to 125^ at constant pressure will be [given C_p = 5 2 R]
- In which of the following reactions, the enthalpy is the least?
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