MolSynapse
question bank
All chapters
NEET
JEE
Practice
MolSynapse
/
Question bank
/
Chemical Equilibrium
/
Relation between Kp and Kc, units
NEET level
Single correct option
Difficulty 1 of 3
ce057
At a given temperature,
K
p
=
K
c
for which of the following reactions?
A
PCl
X
5
(
g
)
PCl
X
3
(
g
)
+
Cl
X
2
(
g
)
B
N
X
2
O
X
4
(
g
)
2
NO
X
2
(
g
)
C
2
SO
X
2
(
g
)
+
O
X
2
(
g
)
2
SO
X
3
(
g
)
D
H
X
2
(
g
)
+
I
X
2
(
g
)
2
HI
(
g
)
Answer: D
K
p
=
K
c
(
RT
)
Δ
n
equals
K
c
only when
Δ
n
=
0
. For
H
X
2
+
I
X
2
2
HI
,
Δ
n
=
2
−
2
=
0
; the other three have
Δ
n
=
+
1
,
+
1
,
−
1
.
Practice Chemical Equilibrium
More on Relation between Kp and Kc, units
Previous question
Next question
More questions on Relation between Kp and Kc, units
For the reaction N2(g) + 3H2(g) <=> 2NH3(g), the correct relation between K_p and K_c is
NEET level
The unit of K_p for the reaction 2SO2(g) + O2(g) <=> 2SO3(g), when pressures are in atm, is
NEET level
The unit of K_c for the reaction N2O4(g) <=> 2NO2(g), with concentrations in mol L^-1, is
NEET level
For PCl5(g) <=> PCl3(g) + Cl2(g), K_c = 0.040 mol L^-1 at 500 K. Taking R = 0.0821 L atm mol^-1 K^-1, K_p (in atm) is approximately
NEET level
For 2NO(g) + O2(g) <=> 2NO2(g), K_c = 1.2x10^3 L mol^-1 at 300 K. Taking R = 0.0821 L atm mol^-1 K^-1, K_p in atm^-1 is approximately
NEET level
For N2O4(g) <=> 2NO2(g) at 298 K, K_c = 5.8x10^-3 mol L^-1. Using R = 0.0821 L atm mol^-1 K^-1, calculate K_p in atm, correct to two decimal...
JEE Main level