Question

The graphs drawn between volume vs temperature at constant pressure is called as
a) Isobars
b) Isotherms
c) Isochores
d) Isotopes​

Answer 1

Answer:

its isobars..

Explanation:

just becoz pressure is constant..it is called so

as bar is a unit of pressure u can relate it to that...

Answer 2

The graphs drawn between volume vs temperature at constant pressure is called as ISOBARS

Reason:

• "Bar" comes from the word baric , which refers to pressure.

• The word "iso" means constant.

• So , any graph plotted between volume and temperature at constant pressure will be referred to as an isobaric curve.

For example, for an Ideal Gas :

$\therefore \: PV = nRT$

Foe constant Pressure:

$= > \: V \propto \: T$

So, the isobar will be :

$\boxed{\setlength{\unitlength}{1cm}\begin{picture}(8,8)\put(3,2){\vector(0,1){3}}\put(2,3){\vector(1,0){3}}\put(3,3){\line(1,1){1}}\put(2.5,4){V}\put(4,2.5){T}\put(3,1){ISOBAR}\end{picture}}$