If 30.0 l of oxygen are cooled from 200ºc to 1°c at constant pressure, what is the new volume of oxygen? (can you show the steps)

According to Charles's Gas Law, when the pressure of a system remains the same going from one state (point 1) to another (point 2), increasing the volume from point 1 to point 2 will result in an increase in the temperature of the gas from point 1 to point 2 as well. In equation form,

 
V1/T1 = V2/T2

It should be noted that the unit of temperature to be used is Kelvin. Thus, if the temperature is given in degrees Celsius, first convert it to Kelvin by adding 273.15.  

We then have:

30.0 L/ 473.15 K = x L/ 274.15 K

where, x is the new volume of oxygen

After calculating, we obtain x = 17.38 L O2

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.