Answer
Interstitial diffusion is more rapid than vacancy diffusion because:
1. Interstitial atoms are more mobile because interstitial atoms are smaller.
2. There are more empty interstitial positions than vacancies, thus making there a higher probability of interstitial atomic movement than that of vacancy diffusion.
Work Step by Step
Interstitial diffusion is more rapid than vacancy diffusion because:
1. Interstitial atoms are more mobile because interstitial atoms are smaller.
2. There are more empty interstitial positions than vacancies, thus making there a higher probability of interstitial atomic movement than that of vacancy diffusion.
