Problem: A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 0.020 hour, and the assembly expands from an initial volume of 0.90 L to a final volume of 5.88 L against an external pressure of 1.0 atm.Calculate w.

FREE Expert Solution
85% (99 ratings)
FREE Expert Solution

We’re being asked to calculate the work for a system that has an initial volume of 0.90 L to a final volume of 5.88 L against an external pressure of 1.0 atm.


Recall that work (w) is given by:


w=-PΔV


where: 

P = pressure (in atm)

ΔV = Vfinal – Vinitial = change in volume (in L)


85% (99 ratings)
Problem Details

A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 0.020 hour, and the assembly expands from an initial volume of 0.90 L to a final volume of 5.88 L against an external pressure of 1.0 atm.

Calculate w.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Internal Energy concept. You can view video lessons to learn Internal Energy Or if you need more Internal Energy practice, you can also practice Internal Energy practice problems .

How long does this problem take to solve?

Our expert Chemistry tutor, Alyssa took 1 minute to solve this problem. You can follow their steps in the video explanation above.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in . You can also practice practice problems .