Thermodynamics questions
1906 published questions with worked solutions.
- Gibb's Helmholtz equation is
- At 27^ C latent heat of fusion of a compound is 2930 J/mol. Entropy change is
- The heat of combustion of yellow P and red P are -9.91 kJ and -8.81 kJ respectively. The heat of transition of yellow to red...
- For the A B process. Given : H = +ve, S = -ve, T S > H. Which of the following is correct?
- The heat of solution of anhydrous CuSO_4 and CuSO_4.5H_2O are -15.89 and 2.80 kcal ,mol^ -1 respectively. Heat of hydration of...
- Which of the following process proceeds with the +ve value of S?
- In which of the following case does entropy decrease?
- At 373 K, the heat of transition for H_2O(l) H_2O(g) is H = 37.3 kJ ,mol^ -1 . The entropy change corresponding to the reaction is
- A chemical reaction will be spontaneous if it is accompanied by a decrease of
- If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy?
- For a reversible isothermal process in equilibrium, the entropy change is given by the expression
- If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then :
- Mathematically, Gibb's free energy (G) is defined by the following relation :
- Which of the following has S^0 greater than zero?
- Since enthalpy of elements in their natural state is taken to be zero, the heat of formation ( H_f) of compounds
- Enthalpy of vapourization of naphthalene is 48.5 kJ ,mol^ -1 , enthalpy of fusion of naphthalene is 22.5 kJ ,mol^ -1 , then...
- It is given : H_2O_ (s) H_2O_ (l) ; H = 6.05 kJ H_2O_ (l) H_2O_ (g) ; H = 43.7 kJ The heat of sublimation of ice at 273 K is
- 2 mole of an ideal gas at 27^ 0 C temperature is expanded reversibly from 2 lit to 20 lit. Find entropy change. (R = 2 cal/mole K)
- For the spontaneity of a reaction which statement is true?
- In which of the following entropy decreases?
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