⇦ | ⇨ |
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: - If the series limit of Lyman series for hydrogen atom is equal to the series limit
- Which of the following is or the property of a cathode ray
- An electric dipole placed in a non-uniform electric field experiences
- With the decrease of current in the primary coil from 2 amperes to zero value
- The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV,
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
- If the series limit of Lyman series for hydrogen atom is equal to the series limit
- Which of the following is or the property of a cathode ray
- An electric dipole placed in a non-uniform electric field experiences
- With the decrease of current in the primary coil from 2 amperes to zero value
- The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV,
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