Thermodynamics questions
1906 published questions with worked solutions.
- The enthalpy change for the process C(graphite) C(diamond) is called **[MP PET 2003]**
- The free energy changes for the following reactions are given below C_2H_2(g)+ 52O_2(g) 2CO_2(g)+H_2O(l); G^ =-1234 kJ...
- For the reaction CO(g) + 12O_2(g) CO_2(g), H and S are -283 kJ, -87 JK^ -1 respectively. It was intended to carry out this...
- 12I_2(g) + 12Cl_2(g) ICl(g) (using the data, _ diss H^ _ Cl_2 = 240 kJ mol^ -1 , _ diss H^ _ I_2 = 151.0 kJ mol^ -1 , sublimation...
- The amount of heat evolved when 500 cm^3 of 0.1 M HCl is mixed with 200 cm^3 of 0.2 M NaOH is
- A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide....
- Given, 2C+2O_2(g) 2CO_2(g); H = -787 kJ H_2(g)+ 12O_2(g) H_2O(l); H = -286 kJ C_2H_2(g)+2 12O_2(g) 2CO_2(g)+H_2O(l); H = -1310 kJ...
- What are the units of entropy?
- Identify the correct statement regarding a spontaneous process. **[AIEEE 2007]**
- Identify the reaction for which H E **[EAMCET 2006]**
- Enthalpy of formation of H_2SO_4 can be represented by the following equation: H_2+S+2O_2 H_2SO_4 ...(i) Given, S+O_2 SO_2;...
- The enthalpy of vaporisation of benzene is +35.3 kJ/mol at its boiling point of 80°C. The entropy change in the transition of...
- Which is a condition for spontaneous process?
- The entropy change for the reaction H_2(g)+Cl_2(g) 2HCl(g) will be [Given that, S^ (Cl_2)=223 JK^ -1 mol^ -1 , S^ (H_2)=131 JK^...
- For the reaction 2H_2(g)+O_2(g) 2H_2O(g); H = -573.2 kJ. The heat of decomposition of water per mole is **[MHT-CET 2007]**
- All naturally occurring processes proceed in a direction which leads to **[J & K CET 2007]**
- Calculate enthalpy for formation of ethylene from the following data: (I) C(graphite)+O_2(g) CO_2(g); H = -393.5 kJ (II) H_2(g)+...
- Enthalpy of vaporisation of a substance is 840 J/mol and its boiling point is -173°C. Its entropy of vaporisation is **[Kerala...
- For a reversible reaction, S_ system + S_ surrounding is
- Enthalpy is equal to **[VITEEE 2007]**
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