A 7L container holds 7 mol and 18 mol of gasses A and B, respectively. Every three of molecules of gas B bind to one molecule of gas A and the reaction changes the temperature from 320oK to 330oK. By how much does the pressure change?
1 Answer
Oct 14, 2017
Pressure changes directly with amount of matter and with temperature. We'll do this in two steps.
Explanation:
If the reaction is of the form
(1)
In the reaction 18 mol of B will bind to 6 mol of A to form 6 mol of C (assuming C is also a gas!).
1 mol of A will be left. So now we have 7 mol in stead of 25 mol.
(2)
Temperature goes from 320 K to 330 K:
Total change:
Note:
More likely the reaction is of the form:
In this case the number of moles goes from:
And the fraction in step (1) will be