⇦ | ⇨ |
Van der waals,equation of state is(p+a/v²)(V-b)=nRT. The dimensions of a and b are
Options
(a) [ML³T²],[ML³T⁰]
(b) [ML⁵T⁻²],[M⁰L³T⁰]
(c) [M²LT²],[ML³T²]
(d) [ML²T],[ML²T²]
Correct Answer:
[ML⁵T⁻²],[M⁰L³T⁰]
Explanation:
((p+a/v²)(V-b)) / nT =R
Since we have (p+a/v²), the term a/v² needs to have units of pressure for subtraction to proceed.
Therefore, aV² = pressure
a = pressure x Volume²
=[ML⁻¹T⁻²] x (L³)²
=ML⁵T⁻²
In case of variable b, it should be same as volume as v-b should work.
b=(L³)
Related Questions: - The alternating current in a circuit is given by I=50 sin314t. The peak value
- A block of mass m1 rests on a horizontal table. A light string connected
- A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Physical World and Measurement
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The alternating current in a circuit is given by I=50 sin314t. The peak value
- A block of mass m1 rests on a horizontal table. A light string connected
- A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply