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The standard enthalpy change associated with the combustion of the octane isomer, 2, 3, 4,-trimethyl pentane (C8H18) is -5064.9 kJ/mol How much more heat is released when 1.00 g of this octane isomer is combusted that when 1.00 g of ethanol is combusted?

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jasminecarter470Lv2

20 Mar 2023

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Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 Â°C).

(a) coal, C(s, graphite);

(b) natural gas, CH4(g);

(d) octane, C8H18(l) (ÎHfÂ° = â250.1 kJ Â·molâ1)

UNITS: mol * MJ^-1

please show step by step instructions so I can better understandand work on other problems. thank you
Fe=55.85
O=16.00

The overall reaction in commercial heat packs can be represented asthe reaction below.
4 Fe(s) + 3 O2(g) ? 2 Fe2O3(s), ?H = -1652 kJ
(a) How much heat is released when 4.13 mol iron is reacted withexcess O2?
___kJ

(b) How much heat is released when 1.46 mol Fe2O3 isproduced?
___kJ

(c) How much heat is released when 1.00 g iron is reacted withexcess O2?
___kJ

(d) How much heat is released when 14.70 g Fe and 2.22 g O2 arereacted?
___kJ