Here is the combustion reaction for octane (c8h18), which is a primary component of gasoline. how many moles of co2 are emitted into the atmosphere when 20.6 g of c8h18 is burned?

0.5421 moles of carbon dioxide are emitted into the atmosphere.

Explanation:

Moles of octane =

According to reaction 1 mol of octane gives 3 moles of carbon dioxide.

Then, 0.1807 moles of octane will give:

of carbon dioxide

0.5421 moles of carbon dioxide are emitted into the atmosphere.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.