Thermodynamics questions
1906 published questions with worked solutions.
- A spontaneous change is one in which the system suffers
- E^ of combustion of isobutylene, (CH_3)_2C=CH_2(g)+6O_2(g) 4CO_2(g)+4H_2O(l), is -x kJ mol^ -1 . The value of H^ is
- If 900 J/g of heat is exchanged at the boiling point of water then the increase in entropy is
- Statement 1: Helium has lower entropy than CO_2 gas, which has lower entropy than gaseous benzene. Statement 2: The larger the...
- If the bond dissociation energies of XY, X_2 and Y_2 (all diatomic molecules) are in the ratio 1:1:0.5 and H for the formation of...
- Combustion of glucose takes place according to the equation C_6H_ 12 O_6+6O_2 6CO_2+6H_2O; H=-72 kcal. How much energy will be...
- The entropy values (in JK^ -1 mol^ -1 ) of H_2(g)=130.6, Cl_2(g)=223.0 and HCl(g)=186.7 JK^ -1 mol^ -1 at 298 K and 1 atm...
- Statement 1: Internal energy is an extensive property. Statement 2: Internal energy depends upon the amount of the system.
- Statement 1: Absolute values of internal energy of a substance can't be determined. Statement 2: It is impossible to determine...
- _fH^ of hypothetical MgCl is -125 kJ mol^ -1 and for MgCl_2 is -642 kJ mol^ -1 . The enthalpy of disproportionation of MgCl...
- A heated iron block at 127°C loses 300 J of heat to the surroundings which are at a temperature of 27°C. The total entropy change...
- The lattice energy of solid KCl is 181 kcal mol^ -1 and the enthalpy of solution of KCl in H_2O is 1.0 kcal mol^ -1 . If the...
- Amongst the following, the total number of physical properties which are extensive are: (a) Density (b) Viscosity (c) Surface...
- In the process: H_2O(s,-10°C,1 atm) H_2O(l,10°C,1 atm). C_P for ice =9 cal deg^ -1 mol^ -1 , C_P for H_2O(l)=18 cal deg^ -1 mol^...
- The polymerization of propene to linear polypropylene is represented by the reaction n ( smallmatrix CH_3 | =CH_2 smallmatrix ) (...
- Amongst the following, the total number of reactions/processes in which the entropy increases are: 1. 2NaHCO_3(s)...
- Bond dissociation energies of XY, X_2 and Y_2 (all diatomic molecules) are in the ratio of 1:1:0.5 and H_f of XY is -100 kJ mol^...
- Which one is not a spontaneous process?
- When a solid melts, there is
- The apparatus generally used for measuring heat changes 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