Linker IT Software
Google
Web www.oraxcel.com
menubar-top-links menubar-top-rechts
Home Help Search Login
Welcome, Guest. Please Login.
SQL*XL: Database to Excel bridge litLIB: Excel power functions pack ExcelLock: Locking and securing your valuable Excel spreadsheets encOffice: Protect your Excel file easy and safe encOffice: Protect your Excel file easy and safe
Pages: 1
Energy, heat and work (Read 1672 times)
Gerrit-Jan Linker
YaBB Administrator
*****




Posts: 75
Energy, heat and work
09.04.09 at 09:43:46
 
Energy, heat and work
 
The energy of a system is a measure of the system's capacity to do work or to supply heat.  
 
Work is the energy expended during the act of moving an object against an opposing force.
 
Heat is the energy transferred as a result of a temperature difference between the system and its surroundings.
 
First law of thermodynamics: The energy of an isolated system is constant.
dU = dq + dw, where
dU is the change of energy in a system
dq = C dT where C is the heat capacity and dT is the change in temperature
dw = dwe - pexdV
dw is the work done on the system.
dwe is the external work done on the system
- pexdV is the p,V work done on the system
 
 
References:
General Chemistry, Atkins and Beran
Physical Chemistry, Atkins
Back to top
 
« Last Edit: 10.04.09 at 18:57:01 by Gerrit-Jan Linker »  

Gerrit-Jan Linker
Linker IT Software
Email WWW Gerrit-Jan Linker   IP Logged
Pages: 1