Thermodynamics questions
1906 published questions with worked solutions.
- A gas (Molar mass = 280 g mol^ -1 ) was burnt in excess O_ 2 in a constant volume calorimeter and during combustion the...
- A diatomic gas ( = 1.4) does 400 J of work when it is expanded isobarically. The heat given to the gas in the process is _____ J.
- In a carnot engine, the temperature of reservoir is 527°C and that of sink is 200 K. If the work done by the engine when it...
- Match List-I with List-II List-I: (A) Spontaneous process (B) Process with P = 0, T = 0 (C) H_ reaction (D) Exothermic process...
- At a certain temperature, the degrees of freedom per molecule for gas is 8. The gas performs 150 J of work when it expands under...
- Among the following the number of state variables is _____. Internal energy (U), Volume (V), Heat (q), Enthalpy (H)
- A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The...
- For combustion of one mole of magnesium in an open container at 300 K and 1 bar pressure, cH^ = −601.70 kJ mol^ -1 , the...
- Given below are two statements Statement-I: When amount of an ideal gas undergoes adiabatic change from state (P_ 1 , V_ 1 , T_ 1...
- C(s) + O_ 2 (g) CO_ 2 (g) + 400 kJ C(s) + 1 2 O_ 2 (g) CO(g) + 100 kJ When coal of purity 60% is allowed to burn in presence of...
- Which of the following 3d-metal ion will give the lowest enthalpy of hydration ( _ hydH ) when dissolved in water ?
- The pressure P_ 1 and density d_ 1 of diatomic gas ( = 7/5) changes suddenly to P_ 2 (> P_ 1 ) and d_ 2 respectively during an...
- When 600 mL of 0.2 M HNO_ 3 is mixed with 400 mL of 0.1M NaOH solution in a flask, the rise in temperature of the flask is _____...
- 300 cal. of heat is given to a heat engine and it rejects 225 cal. of heat. If source temperature is 227°C, then the temperature...
- 17.0 g of NH_ 3 completely vaporises at −33.42°C and 1 bar pressure and the enthalpy change in the process is 23.4 kJ mol^ -1 ....
- The efficiency of a Carnot engine operating with a hot reservoir kept at a temperature of 1000 K is 0.4. It extracts 150 J of...
- A source supplies heat to a system at the rate of 1000 W. If the system performs work at a rate of 200 W. The rate at which...
- The value of log K for the reaction A B at 298 K is ________. (Nearest integer) Given : H^0 = –54.07 kJ mol^ -1 S^0 = 10 JK^ -1...
- Consider the graph of Gibbs free energy G vs extent of reaction. The number of statement/s from the following which are true with...
- Work done by a Carnot engine operating between temperatures 127°C and 27°C is 2 kJ. The amount of heat transferred to the engine...
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