NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

JDK1.0.2 simulations (1996-2001) => Misc => Topic started by: rabea on March 31, 2005, 03:24:25 pm



Title: thermodynamic numerical
Post by: rabea on March 31, 2005, 03:24:25 pm
hey guys,
this is someones question and i dont know the answer so could anyone of u plz answer it for me??ASAP.thanx in advance. :)
i was trying to solve some thermodynamic numericals for my test next week and i couldn't solve this one.
A mass of liquid with volume V completely turns into a gas of volume V' at a constant external pressure P and temperature T.
The latent heat of vaporisation is L for the given mass.
what will be the change in the internal energy of the system??

a)PV'-PV

b)L-PV'+PV

c)zero

d)L+PV'-PV

take care


Title: topic153
Post by: Fu-Kwun Hwang on April 01, 2005, 10:51:25 am
The work done is P(V'-V)
vaporisation process require energy L
so energy loss is P(V'-V)+L


Title: atif
Post by: atifali12 on September 18, 2014, 07:04:39 pm
vry nice post good