Most Important Selected Qs for JEE AdvancedChemistryStates of Matter
Paragraph According to Maxwell distribution law, the probability distribution function is given as below: F ( v )=4 ( M 2 R T )^ 3 / 2 v ^2 e ^ -M v ^2 / 2 R ~T M-molar mass of gas, v-speed, R-gas constant, T-Absolute temperature Fraction of molecule in the range of v₁ to v₂= _ v₁ ^ v₂ f(v) d v Question Select the incorrect statement about a gas following Maxwell distribution law.
Options
- AExponential term implies that the fraction of molecules with very high speed will be very small
- BM 2 R T in exponent implies that heavy molecules are unlikely to be found with very high speed
- Cv ^2 in pre-exponential term implies very slow molecules will be very small
- DM 2 RT in pre-exponential term implies that heavy molecules are unlikely to be found with very high speeds
Correct answer
D. M 2 RT in pre-exponential term implies that heavy molecules are unlikely to be found with very high speeds
Step-by-step solution
Remaining part of the function will make the overall fraction =1 .