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The gas butaue CHn). can be used in weldin. When butane is buaued in oxygen, uue seactica is (a) Using the following data, calculate ΔHht this reaction. AFTgkJ mol-1- C4H10(T)=-125.7; CO2(,--393.5; H20g)--241.8 b)Calculate the total heat capacity of S mal of Co(e) and 10 mol of Hoe) using Ccoe)-371Jmo and C-.6 mat (c) When this reaction is carried out in an open flame, aloet all the heat produoed in part (a) goes to raise the temperature of the prodncta. Assuning that the reactants are at 25 C, calculate the maximum flae temmperature that is artainable in anopen flame burning butane in oxygen. The actul flame temperature would be lower than this because hea is lost to the surroundings. oC

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Given seadion SH =-5314.6 k汀 53-6丁 K-mol k-mol Total ha caracty 6328 in △H: mc.DT 5346+ia k-Inol ie, 11:8423.5°C

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