Thermodynamics questions
1906 published questions with worked solutions.
- What is the entropy change (in J K^ -1 mol^ -1 ) when one mole of ice is converted into water at 0^ ? (The enthalpy change for...
- The standard entropies of CO_ 2(g) , C_ (s) and O_ 2(g) are 213.5, 5.740 and 205 J K^ -1 respectively. The standard entropy of...
- Heat of neutralisation of a strong acid by a strong base is a constant value because, _____
- Theoretical basis of Hess's law is _________ [MH CET 2011]
- C_2H_4 + Cl_2 C_2H_4Cl_2 ; H = -270.6 kJ/mol, S = -139.0 J/K mol. G at 300 K is __________
- For a spontaneous reaction, the G, equilibrium constant (K) and E^ _ cell will be respectively _______
- The values of H and S of a certain reaction are -400 kJ ,mol^ -1 and -20 kJ ,mol^ -1 ,K^ -1 respectively. The temperature below...
- Which of the following values of _f H^ represents that the product is least stable?
- Identify the CORRECT statement regarding a spontaneous process
- Which one of the following bonds has the highest average bond energy (kcal/mol)?
- "The resultant heat change in a reaction is the same whether it takes place in one or several stages." This statement is called...
- Given that: C + O_2 CO_2 ; H^ = -x kJ 2CO + O_2 2CO_2 ; H^ = -y kJ The heat of formation of carbon monoxide will be _________
- The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversible path...
- For which among the following reactions, change in entropy is less than zero? [MH CET 2015]
- The entropy change for a non-spontaneous reaction is 140 J/K.mole at 298 K. The reaction is ____________
- Given standard enthalpy of formation of CO (-110 kJ/mol) and CO_2 (-394 kJ/mol). The heat of combustion when one mole of graphite...
- If the value of H in a reaction is positive, then the reaction is called __________ [BHU 2002]
- Which law of thermodynamics helps in calculating entropy at different temperatures? [Pb. CET 2003]
- The standard heats of formation for CCl_ 4(g) , H_2O_ (g) , CO_ 2(g) and HCl_ (g) are -25.5, -57.8, -94.1 and -22.1 kcal...
- The entropy change for a certain reaction is 150 J/K.mol. at 298 K. The minimum value of H for the reaction is _______
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