Home
Class 11
CHEMISTRY
In the temperature changes from 27^(@)C ...

In the temperature changes from `27^(@)C` to `127^(@)C`, the relative percentage change in RMS velocity is

A

1.56

B

2.56

C

15.6

D

82.4

Text Solution

Verified by Experts

The correct Answer is:
C
`c=sqrt((3RT)/(M))`
At `27^(@)C, " "c=sqrt((3Rxx300)/(M))=sqrt(300)x`
`=17.3x" " (x=sqrt((3R)/(M)))`
At `127^(@)C`
`c=sqrt((3Rxx400)/(M))=sqrt(400)x=20x`
`:.` Increase`=20x-17.3x=2.7x`
% increase`=(2.7x)/(17.3x)xx100=15.6`
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER : GASES AND LIQUIDES

    PRADEEP|Exercise COMPETITION FOCUS (Behaviour of real gases and van der Waals equation)|12 Videos

  • STATES OF MATTER : GASES AND LIQUIDES

    PRADEEP|Exercise COMPETITION FOCUS (Liquefaction of gases and critical temperature)|3 Videos

  • STATES OF MATTER : GASES AND LIQUIDES

    PRADEEP|Exercise COMPETITION FOCUS (Measurement of mass, volume, temperature and pressure, gas laws and ideal gas equation|36 Videos

  • SOME p-BLOCK ELEMENTS

    PRADEEP|Exercise Competition Focus (JEE( Main and Advanced)/Medical Entrance) VIII. Assertion-Reason Type Questions (Type I)|23 Videos

  • STATES OF MATTER: SOLID MATTER

    PRADEEP|Exercise COMPETITION FOCUS (ASSERTION-REASON)|17 Videos

Similar Questions

Explore conceptually related problems

When the temperature of a gas is raised from 27^(@)C to 90^(@)C , the percentage increase in the rms velocity of the molecules will be

As temperature changes from 3^(@)C to 45^(@)C , the rate of enzyme activity will

The temperature of an ideal gas is increased from 27^(@)C to 127^(@)C , the percentage increase in V_(rms) is [2013]

The temperature of hot junction of a thermo-couple changes from 80^(@)C to . 100^(@)C . The percentage change in thermoelectric power is

The specific rate constant for a reaction increases by a factor of 4, if the temperature is changed from 27^(@)C" to "47^(@)C . Find the activation energy for the reaction.

The rate of a reaction gets doubled when the temperature changes from 7^(@)C to 17^(@)C . By what factor will it change for the temperature change from 17^(@)C to 27^(@)C ?