Answer:
10.5 L
Step-by-step explanation:
From the question,
Work done in pushing the piston back = Energy released by the system = w = - 865 J (- sign as the heat is being released)
The expression for the calculation of work done is shown below as:
Where, P is the pressure
is the change in volume
From the question,
= 0.290 L
P = 635 mmHg
Also, P (atm) = P (mm Hg) / 760
Pressure = 635 / 760 = 0.8355 atm
So,
Also, 1 J = 1/ 101.325 atmL
So,

Solving for
, we get that:-

