urgent: work done (when change in volume occurs) Watch

supreme
Badges: 2
Rep:
?
#1
Report Thread starter 13 years ago
#1
Calculate the work done by a system in which a reaction results in the formation of 1.0 mol CO2(g) at 25°C and 100 kPa. (Hint The increase in volume will be 25 dm³ under these conditions if the gas is treated as perfect: use the relations 1 dm³ = 10-3 m³ and 1 Pa m³ = 1 J.

Answer: 2.5 kJ (book's)

Hey,

I don't see where the book has got their answer from, obviously I making an error somewhere:

w = -pext * delta V
w = -100 x 103 Pa * 2.5 x 10-2
w = -2500 Pa m³
w = -2500 J
w = -2.5 kJ
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of East Anglia
    All Departments Open 13:00-17:00. Find out more about our diverse range of subject areas and career progression in the Arts & Humanities, Social Sciences, Medicine & Health Sciences, and the Sciences. Postgraduate
    Wed, 30 Jan '19
  • Solent University
    Careers in maritime Undergraduate
    Sat, 2 Feb '19
  • Sheffield Hallam University
    City and Collegiate Campus Undergraduate
    Sun, 3 Feb '19

Brexit: Given the chance now, would you vote leave or remain?

Remain (489)
80.03%
Leave (122)
19.97%

Watched Threads

View All