Question

match the following
Column - 1
A) High
pressure
B) Pressure
is not too
low
Column - 11
p) PV = RT
+Pb
a
PV = RT
9)
V
C) Forece of
attraction is ) PV = RT
negligible
D) Very high
s) Z = 1
temperature​

Answer 1

Answer:

Correct option is

B

(A)-(i), (B)-(ii), (C)-(iii), (D)-(iv)

According to vander waal's equation,

[P+

V

2

n

2

a

][V−nb]=nRT

At high pressure, a/V

2

can be neglected in comparson to P so equation becomes,

P[V−nb]=nRT

PV=nRT+nPb

At lower pressure: V is large and b is negligible in comparison with V. Then Vander Waalsequation reduces to

[P+

V

2

n

2

a

][V]=nRT

PV=RT−a/V

As P→0

gas behaves like an ideal gas and equation become,

PV=RT

And

Neither a nor b is negligible, it is vander waal's equation

[P+

V

2

a

][V−b]=RT