| ⇦ | 
| ⇨ |
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: - Light propagates rectilinearly because of its
- The energy released by the fission of one uranium atom is 200 MeV.
- The loudness and pitch of a sound note depends on
- The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is
- The thermo e.m.f. E in volts of a certain thermocouple is found to vary
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
- Light propagates rectilinearly because of its
- The energy released by the fission of one uranium atom is 200 MeV.
- The loudness and pitch of a sound note depends on
- The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is
- The thermo e.m.f. E in volts of a certain thermocouple is found to vary
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