- #1
ahmedbadr
- 29
- 0
well,in closed system ,for example piston-cylinder system i can't determine how pressure,temperature and volume change to relating each other(in liquids and gases)?
iam confused abt that , i have some question abt that
when heat is transferred to the (liquid for example) so there is higher velocity of molecules(higher momentum) so it is suppoed that volume increases while pressure is constant my question here
(1)why volume increases? is that because when molecules have higher momentum so they can overcome intermolecular forces so distances between molecules increase so it starts to change its phase from liquid to vapor
if that correct so doesn't that affect preesure ?is there arelation between intermolecular forces and pressure??
iam confused abt that , i have some question abt that
when heat is transferred to the (liquid for example) so there is higher velocity of molecules(higher momentum) so it is suppoed that volume increases while pressure is constant my question here
(1)why volume increases? is that because when molecules have higher momentum so they can overcome intermolecular forces so distances between molecules increase so it starts to change its phase from liquid to vapor
if that correct so doesn't that affect preesure ?is there arelation between intermolecular forces and pressure??