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Heat of combustion of methane and ethane are -291.7 Kcal & — 441.2 Kcal respectively:

A. Methane is a better fuel because ethane is poisonous

B. Methane is a better fuel than C2H6

C. Ethane is a better fuel than CH4

D. Both are equally efficient as a fuel

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  1. The molar entropy of vaporisation of a liquid at its boiling point is
  2. The heat change taking place in the reactionH2 OI→H2Og,∆HfH2 Og=-57K Cal∆HfH2 OI=68.3K Cal is..?
  3. The total heat content of a system is known as....
  4. A person requires 2870 Kcal of energy for leading a normal life. If heat of combustion of cane sugar…
  5. If temperature is kept constant during the reaction, the process is said to be.......................
  6. The factor that does not influence the heat of reaction is...
  7. The highest temperature at which vapour pressure of a liquid can be measured is..
  8. 35.5 gm of chlorine gas is allowed to expand freely in vacuum at 25°C. Then AH for this process…
  9. The enthalpy of the elements in their standard states is taken as zero. So the enthalpy of formation…
  10. The solution energy of AI+++ion is more than that of Mg+++ due to...
  11. In reaction Cs+O2g→CO2g ∆H=-94.3 K cal mol-1
  12. Heat of fusion of a molecular solid is
  13. For a reaction 2 SO2g+O2g→2 SO3;g∆G°=-141.8 KJ-1So the driving force…
  14. 1 Joule is equal to
  15. A person requires 2870 Kcal of energy for leading a normal life. If heat of combustion of cane sugar…
  16. Heat of reaction
  17. For the reaction C+O2→CO2        ∆H1=394 KJ mole-12CO+O2→2CO2∆H2=569 KJ∆H for 1 mole formation of CO is...?
  18. Heat of combustion of S (Rhombic) and S (monoclinic) are -297.5 KJ and -300 KJ mole-1 respectively.…
  19. In a thermal decomposition reaction, sign of ∆H may be...
  20. 10 gm of ice at 0°C is placed into 100 gm of water at 50°C. Hie temperature of water after the…
  21. Heat of neutralisation of HCI and NaOH is -57.32 KJ per gram equivalent and that of acetic acid and…
  22. Heat of Reaction between sodium hydroxide and hydrochloric acid is 57.32 KJ mole-1. So heat of…
  23. The heat of neutralisation of a strong acid and a strong base is equal to......................K.Cal gm eq-1
  24. Heat of combustion of methane and ethane are -291.7 Kcal & — 441.2 Kcal respectively:
  25. Internal energy of the elements is assigned a value of................................cal per mole at…
  26. On burning hydrogen in an atmosphere of chlorine, 1.65 gm of HC1 was obtained and 1 Kcal of heat was…
  27. In a spontaneous irreversible process, the total entropy of the system & its surroundings
  28. The apparatus used for measuring the heat changes is known as ...