Thermodynamics questions
1906 published questions with worked solutions.
- For a given chemical reaction A B at 300 K, the free energy change is –49.4 kJ mol^ -1 and the enthalpy of reaction is 51.4 kJ...
- An average person needs about 10000 kJ energy per day. The amount of glucose (molar mass = 180.0 g mol^ -1 ) needed to meet this...
- If the standard molar enthalpy change for combustion of graphite powder is -2.48 10^2 kJ mol^ -1 , the amount of heat generated...
- Match List-I with List -II : List-I: (a) Isothermal (b) Isochoric (c) Adiabatic (d) Isobaric List-II: (i) Pressure constant (ii)...
- Which of the following processes is reversible ?
- An ideal gas heat engine operates in Carnot cycle between 227°C and 127°C. It absorbs 6 10^ 4 cal of heat at higher temperature....
- A reaction occurs spontaneously if :
- Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction ?
- The absolute enthalpy of neutralisation of the reaction : MgO(s) + 2HCl(aq) → MgCl_ 2 (aq) + H_ 2 O(l) will be :
- For water at 100°C and 1 bar, _ vap H- _ vap U=_______ 10^2J mol^ -1 . (Round off to the Nearest Integer) [Assume volume of...
- One mole of an ideal gas is taken through an adiabatic process where the temperature rises from 27°C to 37°C. If the ideal gas is...
- Two Carnot engines A and B operate in series such that engine A absorbs heat at T_1 and rejects heat to a sink at temperature T....
- When 400 mL of 0.2M H_2SO_4 solution is mixed with 600 mL of 0.1 M NaOH solution, the increase in temperature of the final...
- 200 mL of 0.2 M HCl is mixed with 300 mL of 0.1 M NaOH. The molar heat of neutralization of this reaction is –57.1 kJ. The...
- A heat engine operates between a cold reservoir at temperature T_2 = 400 K and a hot reservoir at temperature T_1. It takes 300 J...
- Data given for the following reaction as follows : FeO_ (s) +C_ (graphite) Fe_ (s) +CO_ (g) Substance: H^0(kJ mol^ -1 ), S^0(J...
- A reversible engine has an efficiency of 1 4 . If the temperature of the sink is reduced by 58°C, its efficiency becomes double....
- Consider the following cell reaction Cd_ (s) +Hg_2SO_ 4(s) + 9 5 H_2O_ (l) CdSO_4. 9 5 H_2O_ (s) +2Hg_ (l) The value of E^0_ cell...
- A reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced by 52 K,...
- The correct order of bond dissociation enthalpy of halogens 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