Thermodynamics Watch

aapadela
Badges: 2
Rep:
?
#1
Report Thread starter 6 months ago
#1
1. 40kg steel casting initially at 420◦C was closed in the container which contains 130kg of oil initially at 21◦C. During cooling process, heat equaled to 20% of the change of internal energy of steel casting flowed away from the container to the surroundings at 21◦C. Calculate: a) entropy generated during cooling process to the moment when the temperatures of steel cast and oil are the same; b) entropy generated if cooling process is continued until the system attains equilibrium state with the surroundings. Specific heats of steel and oil are equaled to: 0.5 and 2.5KJ/(kgK), respectively.
0
quote
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 Lincoln
    Mini Open Day at the Brayford Campus Undergraduate
    Wed, 19 Dec '18
  • University of East Anglia
    UEA Mini Open Day Undergraduate
    Fri, 4 Jan '19
  • Bournemouth University
    Undergraduate Mini Open Day Undergraduate
    Wed, 9 Jan '19

Were you ever put in isolation at school?

Yes (234)
27.34%
No (622)
72.66%

Watched Threads

View All