Thermodynamics questions
1906 published questions with worked solutions.
- Identify the correct decreasing order of bond dissociation enthalpy from following
- A sample of gas expands from volume 'V_1' to 'V_2'. The amount of work done by the gas is maximum when the expansion is
- Which from following molecules has highest bond dissociation enthalpy?
- For the reaction C_2H_5OH_ ( ) +3O_ 2(g) 2CO_ 2(g) +3H_2O_ ( ) , U is the heat of reaction at constant volume. Then heat of...
- A monoatomic ideal gas, initially at temperature 'T_1', is enclosed in a cylinder fitted with a frictionless piston. The gas is...
- The enthalpies of combustion of C (graphite) and C (diamond) are –393.8 and –395.3 kJ mol^ -1 respectively. The enthalpy of...
- A gas at N.T.P. is suddenly compressed to one-fourth of its original volume. If = 1.5, then the final pressure is
- A gas is compressed at a constant pressure of 50 N/m² from a volume of 10 m³ to a volume of 4 m³. Energy of 100 J is then added...
- For NaCl_ (s) enthalpy of solution is 4 kJ mol^ -1 and lattice enthalpy is 790 kJ mol^ -1 . What is hydration enthalpy of NaCl?
- What is the value of - for the following reaction? 2C_ (s) + 3H_ 2(g) C_2H_ 6(g)
- In a thermodynamic process, there is no exchange of heat between the system and surroundings. Then the thermodynamic process is
- Calculate G^ 0 for the cell Sn_ (s) ,| ,Sn^ ++ _ (1M) ,|| ,Ag^ + _ (1M) ,| ,Ag_ (s) at 25^ 0 C (E^ 0 _ cell = 0.90 V)
- Which among the following reactions exhibits H = U ?
- An ideal gas expands by performing 200J of work, during this internal energy increases by 432 J. What is enthalpy change?
- Calculate the value of G for following reaction at 300 K. H_2O_ (s) H_2O_ (l) ( H = 7 kJ, S = 24.8 JK^ -1 )
- In an isobaric process of an ideal gas, the ratio of work done by the system (W) during the expansion and the heat exchanged (Q)...
- 10 g each of NH_3, N_2, Cl_2 and H_2S are expanded isothermally and reversibly at same temperature. Identify gas that performs...
- Identify the factor from following on which heat of reaction does not depend
- For the reaction, 2H_ 2(g) + O_ 2(g) 2H_2O_ (g) H^0 = -573.2 kJ What is heat of decomposition of water per mol?
- For an ideal gas, in an isobaric process, the ratio of heat supplied 'Q' to the work done 'w' by the system is ( = ratio of...
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