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In a spontaneous irreversible process, the total entropy of the system & its surroundings

A. is constant

B. decreases

C. increases

D. is zero

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