2 years ago

Is the following a properly written thermochemical equation? 2C8H18 + 25O2 → 16CO2 + 18H2O, ΔH = –5,471 kJ/mol

1 answer:

8 0

I believe the the equation is correctly expressed. The reaction above is a combustion reaction of octane. All of the combustion reaction is known to be exothermic reactions that is they release heat as the reaction proceeds. Consequently, they have negative enthalpies.

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Hello, Flashligh explain where the energy comes from and how it is affecting change or putting an object in motion

dangina [55]

Answer:

Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix.

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Explanation:

7 0

2 years ago

Read 2 more answers

2. (10 Points) If the experiment had continued with you adding an 8 kg weight to

vaieri [72.5K]

Answer: picture is work for # 1,2,4,5,7

Explanation: number 3: as the pressure in the volume decreases, the volume increases causing it to expand and eventually blow.

number 6: because the temperature and the amount of gas don’t change, these terms don’t appear in the equation. What Boyle’s law means is that the volume of a mass of gas is inversely proportional to its pressure. This linear relationship between pressure and volume means doubling the volume of a given mass of gas decreases its pressure by half.

hope this helps :))