- #1

jybe

- 41

- 1

## Homework Statement

What is

*w*when a gas is compressed from 42.1 L to 25.1 L using a constant external pressure of 739 Torr? Remember to include a "+" or "−" sign as appropriate.

## Homework Equations

W = -P(dV)

## The Attempt at a Solution

Pressure = (739 Torr / 760 Torr)*(101.325 kPa)

W = -((739 Torr / 760 Torr)*(101.325 kPa))*(-17 L)

W = +1674.9289 J (by the convention that when the system is compressed, work is positive)

Is this correct?

Also, it says "Enter your answer in acceptable SI units, accurate to 3 significant figures. Use an acceptable SI symbol for units." Would I enter it as 1.68 KJ?