gaseous state | iTeachChem | Page 1

loud narwhal Jun 23, 2024, 1:34 PM

#

The density of a substantce at 1 atm pressure and 773K is 0.4g/lit. If the molecular weight of the substance is 30 the forces existing among the molecules are repulsive or attractive.

Acc to my calculations compressibility factor turns out to be less than 1 thus forces should be attractive. Answer is repulsive tho, someone pls explain

scenic tundraBOT Jun 23, 2024, 1:35 PM

#

<@&1227988359910260737>

#

Note for OP

+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.

pearl valve Jun 23, 2024, 2:06 PM

#

loud narwhal Jun 23, 2024, 2:26 PM

#

If compressibility factor (z) < 1 then Vreal must be less than Videal

If V real is less than v ideal then the gas particles must be attracting each other rather than repelling as repelling would essentially mean particles are going further away . Therefore attraction force is greater

Attaching my calc below

#

O m g

#

Just revised my calc

#

Turns out z>1

Sorry for the trouble 😭

#

+solved @pearl valve

#gaseous state