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aiselsarmientop8o290
02.12.2019 •
Chemistry
At 25°c, the standard enthalpy of combustion of gaseous propane (c3h8) is –2219.0 kj per mole of propane, and the standard enthalpy of combustion of gaseous propylene (c3h6) is –2058.3 kj per mole of propylene.
what is the standard enthalpy change for the following reaction at 25°c? c3h6(g) + h2(g) → c3h8(g)substance∆h°f (kj/mol)co2(g)–393.5h2o(l)–285.8
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Ответ:
The standard enthalpy change for the given reaction is 868.05 kJ
Explanation:
Calculating the enthalpy of propane:The chemical equation for the combustion of propane follows:
The equation for the enthalpy change of the above reaction is:
We are given:
Putting values in above equation, we get:
The enthalpy of formation of
is -140.7 kJ/mol
Calculating the enthalpy of propylene:The chemical equation for the combustion of propane follows:
The equation for the enthalpy change of the above reaction is:
We are given:
Putting values in above equation, we get:
The enthalpy of formation of
is -1008.75 kJ/mol
Calculating the enthalpy change of the reaction:The given chemical equation follows:
The equation for the enthalpy change of the above reaction is:
We are given:
Putting values in above equation, we get:
Hence, the standard enthalpy change for the given reaction is 868.05 kJ
Ответ:
Explanation:
... to Find E° for a New Half-Reaction ... Polarographic Measurement of an Equilibrium Constant. 19. ... present Chemical Demonstrations, but I can tell you about some of my favorites and show ... Significant figures are discussed in Chapter 3. ... Analysis of Unknown Calcium in a 5.00-mL urine sample was precipitated with.