CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Calculate work done w for the conversion of 0.5 moles of water at 100 C to steam at 1 atm pressure. Heat of vaporisation of water at 100 C is 40670 Jmol1
  1. 20.2 Latm
  2. 21.2 Latm
  3. 18.3 Latm
  4. 15.3 Latm


Solution

The correct option is D 15.3 Latm
Volume of 0.5 moles of steam at 1 atm pressure
=nRTP
=0.5×0.082×3731.0 L
15.3 L
Change in volume = Vol. of steam - Vol. of water
                                = 15.3 - negligible
                               =15.3 L
 So, work done by the system,
W=Pext×volume change
     =1×15.3 Latm 
     =15.3 Latm
 

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...


People also searched for
QuestionImage
QuestionImage
View More...



footer-image