更新1: [△Hf/kJmol-1: BaO(s): -997.5; BaCO3(s): -1218.8; CO2(g): -393.5; C2H4(g): +52.3; C2H6(g): -84.6; C2H5Br(l): -92.0; C2H5OH(l): -277.7; HBr(g): -36.2; H2O(l): -285.9; H2SO4(l): -814.0; MgCl2(s): -641.8; TiCl4(l): -...
The standard molar enthalpies of solution of Si(OC2H5)4(l), H2O(l), SiO2(am), and C2H5OH(l) in (3.166 mol·dm-3 HF + 3.104 mol·dm-3 HCl)(aq) have been measured. From the results the standard molar enthalpy of formation of Si(OC2H5)4(l) has been calculated. The value ...
. ethene, C 2 H 4 3. carbon (diamond) 4. ethanol, C 2 H 5 OH 5. Sucrose, C 12 H 22 O 11 2 | P a g e The standard enthalpy of formation, ΔH f (kJ mol -1 ) is defined as the enthalpy change that takes place when one mole of a gaseous substance is formed from its...
1. Calculate the standard entropy Delta Srxn of the following reaction at 25 degrees C. The standard enthalpy reaction, Delta Hrxn, is -44 kJ mol-1. C2H4(g) + H2O(l) arrow C2H5OH(l) 2. Then, calculate Calculate the standard entrop...