31. 2076 Set B Q. No. 25 Define bond dissociation energy. The bond dissociation energy of H2 (g) and Cl2 (g) are 435 KJ/mol and 243 KJ/mol respectively. The enthalpy of formation of HCl (g) -92 KJ/mol. Calculate the bond dissociation energy of HCl (g). [1+4] Ans. *431 KJ/mol

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

c. electrical charges of ionic bonds.