Several reactions and their standard reaction enthalpies at 298.15 K are given here:CaC2(s)+2H2O(l)–>Ca(OH)2(s)+C2H2(g) deltaHknot=-127.9kj/molCa(s)+(1/2)O2(g)–>CaO(s) deltaHknot=-635.1kj/molCaO(s)+H2O(l)–>Ca(OH)2(s) deltaHknot=-65.2kj/molThe standard enthalpies of combustion of graphite and C2H2(g) are 393.51 and 1299.58 kJ/mol, respectively. Calculate the standard enthalpy of formation of CaC2(s) at 25ºCSeveral reactions and their standard reaction enthalpies at 298.15 K are given here:CaC2(s)+2H2O(l)–>Ca(OH)2(s)+C2H2(g) deltaHknot= -127.9kj/mol . iCa(s)+(1/2)O2(g)–>CaO(s)…
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