4. The standard enthalpy of formation of bis(benzene) chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2 → Cr(s) + 2C6H6(g) that A.U (583 K) = +8.0 kJ mol™ ¹. Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1J K-¹ mol-¹ in its liquid range and 81.67 J K mol-¹ as a gas. The enthalpy of formation of benzene at 298 K is 49.0 J K¹ mol-¹. The boiling point of benzene is 353 K and the enthalpy of vaporization of benzene is 30.8 J K-¹ mol-¹

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Standard enthalpy of formation of bisbenzenechromium

4. The standard enthalpy of formation of bis(benzene)chromium was measured in a calorimeter.
1
It was found for the reaction Cr(C6H6)2 → Cr(s) + 2C6H6(g) that A-U (583 K) = +8.0 kJ mol™
¹. Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of
the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1J K-¹
mol-¹ in its liquid range and 81.67 J K-¹ mol-¹ as a gas. The enthalpy of formation of benzene
at 298 K is 49.0 J K-¹ mol-¹. The boiling point of benzene is 353 K and the enthalpy of
vaporization of benzene is 30.8 J K-¹ mol-1
Transcribed Image Text:4. The standard enthalpy of formation of bis(benzene)chromium was measured in a calorimeter. 1 It was found for the reaction Cr(C6H6)2 → Cr(s) + 2C6H6(g) that A-U (583 K) = +8.0 kJ mol™ ¹. Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1J K-¹ mol-¹ in its liquid range and 81.67 J K-¹ mol-¹ as a gas. The enthalpy of formation of benzene at 298 K is 49.0 J K-¹ mol-¹. The boiling point of benzene is 353 K and the enthalpy of vaporization of benzene is 30.8 J K-¹ mol-1
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