- 3 The Standard Enthalpies Of Formation For S G F G Sf G And Sf G Are 278 8 79 0 775 And 1209 Kj Mol Resp 1 (39.61 KiB) Viewed 52 times
3. The standard enthalpies of formation for S (g), F(g), SF.(g) and SF.(g) are +278.8, +79.0, -775 and -1209 kJ/mol resp
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3. The standard enthalpies of formation for S (g), F(g), SF.(g) and SF.(g) are +278.8, +79.0, -775 and -1209 kJ/mol resp
3. The standard enthalpies of formation for S (g), F(g), SF.(g) and SF.(g) are +278.8, +79.0, -775 and -1209 kJ/mol respectively. SF. (g) →S(g) + 4 F (g) S F DH, = ? SF. (g) →S(g) + 6 F (g) DH= ? a) Determine the enthalpy of these two reactions. b) Use this data (from a), estimate the energy of an S-F bond using both reactions with SF. (g) and SF. (g). c) Compare your calculated values to the value given in Table 8.4. What conclusion can you draw? d) Why are the DH°, values for S (g) and F (g) not equal to zero since sulfur and fluorine are elements?