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Postby JamieVu_2C » Mon Feb 10, 2020 1:55 am

A technician carries out the reaction at and 1.00 atm in a cylinder fitted with a piston and maintained at constant pressure. Initially, 0.030 mol SO_{2} and 0.030 mol O_{2} are present in the cylinder. The technician then adds a catalyst to initiate the reaction. (e) How much enthalpy is exchanged, and does it leave or enter the system?

The reaction enthalpy is -197.kJ. Why do you have to divide this value by 2 mol SO2 and then multiply it by .030 mol SO2? Also, how do you know to use the moles of SO2 instead of the moles of O2?

Jacob Puchalski 1G
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Joined: Fri Aug 09, 2019 12:16 am

Re: 4.17E

Postby Jacob Puchalski 1G » Mon Feb 10, 2020 2:00 am

Since they give you the specific amount of moles then you're able to find the specific reaction enthalpy.

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