Question

1) Sketch a Maxwell curve describing the speed distribution for a collection of Ar and He gas particles under both high and low temperature conditions. Label accordingly

Answer 1

for Artte Maxwell distribution curve High temp. A не N Ifraction of molecules Omp o comp (speed) Maxwell distribution curve is the distribution of molecules in accordance to their speed. Most probable speed (Ump) is defined as the speed possessed by most number of particles Ump=12RT M. molar mass . Ar has higher molar mass low Ump than He. it has

Yield Low Temp. At low temperature most probable mas speed for both the molecules will decrease. Ump= ZRT The only difference will be observed that the curve would get thinner implying less number of molecules have high speed resulting in less effective collision thereby returnding the overall rate of the reaction a