Thermodynamics questions
1906 published questions with worked solutions.
- The combustion enthalpies of carbon, hydrogen and methane are -395.5 kJ ,mol^ -1 , -285.8 kJ ,mol^ -1 and -890.4 kJ ,mol^ -1...
- Given: 2C_ (s) + 2O_ 2(g) 2CO_ 2(g) ; H_1 = -767 kJ ...(i) H_ 2(g) + 1 2 O_ 2(g) H_2O_ ( ) ; H_2 = -266 kJ ...(ii) C_2H_ 2(g) + 5...
- Given the bond energies N≡N, H-H and N-H bonds are 945, 436 and 391 kJ ,mole^ -1 respectively, the enthalpy of the following...
- For a reaction, H = 9.08 kJ ,mol^ -1 and S = 35.7 J ,K^ -1 ,mol^ -1 . Which of the following statements is CORRECT for the...
- For the change H_2O_ (l) H_2O_ (g) ; P = 1 atm, T = 373 K, the free energy change G = 0. This indicates that ________
- In a reaction, Normal egg Hard boiled egg: S is _________
- The enthalpy of vaporization of a substance is 840 J per mol and its boiling point is -173 °C. Calculate its entropy of...
- If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy?
- 9.0 g of H_2O is vaporised at 100 °C and 1 atm pressure. If the latent heat of vaporization of water is x J/g, then S is given by...
- In which of the following entropy decreases?
- Calculate the free energy change for 2CuO_ (s) Cu_2O_ (s) + 1 2 O_ 2(g) (Given: H = 145.6 kJ ,mol^ -1 , T = 300 K, S = 116 J...
- For reaction 2Cl_ (s) Cl_ 2(s) , the signs of H and S respectively are ______
- The enthalpy change for the transition of liquid water to steam, _ vap H = 37.3 kJ ,mol^ -1 at 373 K. The entropy change for the...
- The essential condition for the feasibility of a reaction is that ________
- For the transition C_ (diamond) C_ (graphite) ; H -1.5 kJ. It follows that _________
- In which of the following reactions, H is greater than U?
- The table given below lists the bond dissociation energy (E_ diss ) for single covalent bonds formed between C and atoms A, B, D,...
- For which reaction from the following, S will be maximum?
- Which of the following is the CORRECT expression for S?
- The value of entropy in solar system is _____
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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