NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- States of Matter
NTA Abhyas 2020 · Chemistry · States of Matter
For gaseous state, if most probable speed is denoted by C^ * ,...
For gaseous state, if most probable speed is denoted by , average speed by \overset{̄}{C} and root mean square speed by C, then for a large number of molecules the ratios of these speeds are
Options
- AC^{*}: \overset{̄}{C}: C = 1: 1.225: 1.128
- BC^{*}: \overset{̄}{C}: C = 1.128: 1.225: 1
- CC^{*}: \overset{̄}{C}: C = 1: 1.128: 1.225
- DC^{*}: \overset{̄}{C}: C = 1.225: 1.128: 1
Correct answer
C. C^{*}: \overset{̄}{C}: C = 1: 1.128: 1.225
Step-by-step solution
most probable speed
\overset{̄}{C} = average speed
Root mean square speed or rms
C^{*} < \overset{̄}{C} < C
C^{*}: \overset{̄}{C}: C = 1: \sqrt{\dfrac{4}{\pi}}: \sqrt{\dfrac{3}{2}} = 1: 1.128: 1.225
\overset{̄}{C} = average speed
Root mean square speed or rms
C^{*} < \overset{̄}{C} < C
C^{*}: \overset{̄}{C}: C = 1: \sqrt{\dfrac{4}{\pi}}: \sqrt{\dfrac{3}{2}} = 1: 1.128: 1.225