Thermodynamics questions
1906 published questions with worked solutions.
- If an endothermic reaction is non-spontaneous at the freezing point of water and becomes feasible at its boiling point then...
- Condition for spontaneity in an isothermal process is **[VITEEE 2007]**
- The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 dm^3 to a...
- The free energy for a reaction having H = 31400 cal, S = 32 cal ,K^ -1 mol^ -1 at 1000°C is **[OJEE 2005]**
- The enthalpy of formation of NH_3 is -46 kJ ,mol^ -1 . The enthalpy change for the reaction 2NH_3(g) N_2(g)+3H_2(g) is
- The enthalpy of vaporisation of liquid water using the data (I) H_2(g)+ 12O_2(g) H_2O(l); H=-285.77 kJ/mol, (II) H_2(g)+ 12O_2(g)...
- The heat of neutralisation is highest for the reaction between **[JCECE 2010]**
- The bond energy of an O-H bond is 109 kcal/mol. When a mole of water is formed, then **[J & K CET 2003]**
- Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is **[Manipal 2007]**
- The heats of combustion of carbon monoxide at constant pressure and at constant volume at 27°C will differ from one another by
- In a closed insulated container, a liquid is stirred with a paddle to increase its temperature. In this process, which of the...
- When a gas undergoes adiabatic expansion, it gets cooled due to
- For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, U and W correspond to
- At 27°C, one mole of an ideal gas is compressed isothermally and reversibly from a pressure of 2 atm to 10 atm. The values of E...
- Which of the following expressions represents the first law of thermodynamics?
- The enthalpies of the elements in their standard states are assumed to be
- H^ (298 K) of methanol is given by the chemical equation
- For the reaction N_2+3H_2 2NH_3; H is
- C(diamond)+O_2 CO_2; H=-395.3 kJ/mol C(graphite)+O_2 CO_2; H=-393.4 kJ/mol C(graphite) C(diamond); H=?
- How much heat (in kJ) is evolved when 2.7 g of aluminium reacts with a stoichiometric amount of Fe_2O_3? 2Al+Fe_2O_3 2Fe+Al_2O_3;...
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