Thermodynamics questions
1906 published questions with worked solutions.
- Given that C(g)+4H(g) CH_4(g); H=-166 kJ. The bond energy of C-H will be
- If the enthalpies of formation of methane and ethane are respectively 320 and 360 cal, then the bond energy of C-C bond is
- The enthalpy of fusion of ice per mole is
- Which is the best definition of heat of neutralization?
- The absolute enthalpy of neutralisation of the reaction MgO(s)+2HCl(aq) MgCl_2(aq)+H_2O(l) will be
- The heat evolved in the combustion of methane is given by the equation CH_4(g)+2O_2(g) CO_2(g)+H_2O(l); H=-890.3 kJ. How many...
- Heat of combustion of a substance
- The enthalpy of dissolution of BaCl_2(s) and BaCl_2 2H_2O(s) are -20.6 and 8.8 kJ per mol respectively. The enthalpy of hydration...
- The enthalpy change for the transition of liquid water to steam is H_ vap =37.3 kJ mol^ -1 at 373 K. The entropy change for the...
- Joule-Thomson expansion is
- Identify the correct statement regarding entropy
- The entropy of crystalline substances at absolute zero by the third law of thermodynamics should be taken as
- Which one of the following has S^ greater than zero?
- Which of the following statements is true? The entropy of the universe
- S^ will be highest for the reaction
- For a reaction at 25°C, enthalpy and entropy changes are -11.7 10^3 J ,mol^ -1 and -105 J ,mol^ -1 K^ -1 respectively. What is...
- The relation G= H-T S was given by
- Calculate the free energy change of 2CuO(s) Cu_2O(s)+ 12O_2(g). Given H=145.6 kJ per mol, S=116 J per mol per K
- When the enthalpy and entropy change for a chemical reaction are -2.5 10^3 cal and 7.4 cal deg⁻¹ respectively, predict whether...
- Which of the following conditions will always lead to a non-spontaneous change?
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