Expansion Work Calculator
🔥 Thermochemistry & Bonding. Use the Expansion work formula to find work, pressure, volume change: pick the value you want, type the others, and the answer updates as you go.
Work-202.65 J
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Work | J |
| Pressure | Pa |
| Volume change | m³ |
Worked example
Find the work when Pressure = 101330 Pa, Volume change = 0.002 m³.
Using w = -PΔ V: Work = -202.65 J.
Frequently asked questions
What is the formula for Expansion work?
w = -PΔ V.
What do the letters stand for, and what units are used?
Work in J, Pressure in Pa, Volume change in m³.
How do you calculate work?
Put the values into w = -PΔ V. For example, with Pressure = 101330 Pa, Volume change = 0.002 m³, work = -202.65 J.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (work, pressure, volume change) and fill in the others: it rearranges the formula for you.
