Thermodynamics questions
1906 published questions with worked solutions.
- Assuming enthalpy of combustion of hydrogen at 273 K is -286 kJ and enthalpy of fusion of ice at the same temperature to be +6.0...
- For which one of the following equations is _ react H^ equal to _fH^ for the product? [CBSE PMT 2003]
- The H - H bond energy is 430 kJ mol^ -1 and Cl - Cl bond energy is 240 kJ mol^ -1 . H for HCl is -90 kJ. The H - Cl bond energy...
- When 4 g of iron is burnt to ferric oxide at constant pressure, 29.28 kJ of heat is evolved. What is the enthalpy of formation of...
- C + O_2 CO_2 ; H = -396 kJ mol^ -1 . Heat liberated in formation of 0.154 kg of CO_2 is _____
- Hess's law of heat summation includes _____ [AFMC 1992]
- Heat of formation of H_2O_ (l) , CO_ 2(g) and C_2H_ 4(g) are -285.0, -399.0 and 69.9 kJ/mole respectively. The heat of combustion...
- Heats of formation of ethane, ethylene, acetylene and CO_2 are -136.9, -66.9, -228 and -395.39 (all in kJ) respectively. Stablest...
- _fH of HCl is _____ (Given: 2HCl H_2 + Cl_2 ; H = -185 kcal) [MH CET 2006]
- Heat of formation of water is -272 kJ. How much water can be decomposed by 750 kJ of heat? [MH CET 2011]
- Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is _____ [CBSE PMT 2004]
- A reaction occurs spontaneously if _____ [MP PET 2002, CBSE PMT 2005]
- One mole of NaCl_ (s) on melting absorbed 30.5 kJ of heat and its entropy is increased by 28.8 J K^ -1 . The melting point of...
- If the enthalpy of vaporization for water is 186.5 kJ mol^ -1 , the entropy of its vaporization will be _____ [CPMT 1988, DCE...
- For the reaction, X_2O_ 4(l) 2 ,XO_ 2(g) ; U = 2.1 kcal, S = 20 cal K^ -1 at 300 K. Hence, G is _____
- If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then _____...
- Values of H and S for give different reactions are given below Reaction: H (kJ mol^ -1 ); S (J K^ -1 mol^ -1 ) I: +98.0; +14.8...
- The unit of entropy is _____ [CBSE PMT 2002]
- The standard enthalpy or the decomposition of N_2O_5 to NO_2 is 58.04 kJ and standard entropy of this reaction is 176.7 J/K. The...
- For reaction; Ag_2O_ (s) 2Ag_ (s) + 12O_ 2(g) , the value of H = 30.56 kJ mol^ -1 and S = 0.0666 kJ K^ -1 mol^ -1 . Temperature...
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