Thermodynamics questions
1906 published questions with worked solutions.
- The CORRECT equation for heat of formation of CO is [MHT-CET 2003]
- Heats of formation of ethane, ethylene, acetylene and CO_2 are -136.9, -66.9, -228 and -395.39 (all in kJ) respectively. Stablest...
- The amount of heat liberated in the reaction 2PCl_5 2P + 5Cl_2 is -340 kJ. The heat of formation of PCl_5 is
- The difference between heat of reaction at constant pressure and constant volume for the reaction C_ (s) + 12 O_ 2(g) CO_ 2(g) is...
- Mathematical expression of enthalpy is [MHT-CET 2004]
- Hess's law is an application of [MHT-CET 2003]
- If the heat of formation of water is -282 kJ, H for 0.6 10^ -2 kg water is [MHT-CET 2007]
- 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...
- For the reaction, C_3H_ 8(g) + 5O_ 2(g) 3CO_ 2(g) + 4H_2O_ (l) At constant temperature, H - U is
- Which of the following equation show the relationship between heat of reaction at constant pressure and that at constant volume?...
- H and U are related as
- If for a reaction H is negative and S is positive then the reaction is
- Given that the reaction, C_2H_ 4(g) + 3O_ 2(g) 2CO_ 2(g) + 2H_2O_ (l) At 298 K, H = -145 kJ if R = 0.0084 kJ. U is equal to
- The H for combustion of a substance
- Given the reaction, N_ 2(g) + 3H_ 2(g) 2NH_ 3(g) , H = -92.6 kJ. The enthalpy of formation of NH_3 is
- Using the following thermochemical data : C_ (s) + O_ 2(g) CO_ 2(g) , H = -94.0 kcal H_ 2(g) + 12 O_ 2(g) H_2O_ (l) , H = -68.0...
- A system, which can exchange mass as well as energy with its surroundings is called as
- In a chemical reaction work is done by the system when
- The enthalpies of combustion of carbon and carbon monoxide are -390 kJ and -278 kJ respectively. The enthalpy formation of carbon...
- If X kJ is the heat produced by the neutralisation of 1 L of The heat produced by neutralising 1 L of 1 M HCl is Y the
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