You want to demonstrate the phenomenon of diffusion to a group of school kids using two coloured gases. For this, you need to slow down the process. Which of the following tricks will help you achieve this feat?

Using gases of large molecular weights

Explore topic-wise MCQs in Materials Science.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.

1.	You want to demonstrate the phenomenon of diffusion to a group of school kids using two coloured gases. For this, you need to slow down the process. Which of the following tricks will help you achieve this feat?
A.	Cooling the gases
B.	Using gases of large molecular weights
C.	Decreasing the size of orifice
D.	All of the mentioned
Answer» E.

Discussion

2.	Carburisation is a heat treatment used for case hardening steels. Carbon is trapped on steel surface by:
A.	Osmosis
B.	Interstitial diffusion
C.	Vacancy diffusion
D.	None of the mentioned
Answer» C. Vacancy diffusion

Discussion

Explore topic-wise MCQs in Materials Science.

You want to demonstrate the phenomenon of diffusion to a group of school kids using two coloured gases. For this, you need to slow down the process. Which of the following tricks will help you achieve this feat?

Carburisation is a heat treatment used for case hardening steels. Carbon is trapped on steel surface by: