CHEMISTRY 111

Question

A piston has an external pressure of 8.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.160 liters to 0.510 liters?
Express your answer with the appropriate units.

 

W=...... VALUE,   ........ UNITS

Answer 1

At constant pressure,

 

W = PΔV

 

P = 8.00 atm  

 

I suggest you convert atm to Pa (N/m²).

 

ΔV = (0.510 - 0.160)L

 

I suggest you convert L to m³.

 

Plug P and ΔV in appropriate units to get work in units of J from

 

W = PΔV