Question
Which two gases will diffuse at the same rate, at the same temperature?
- carbon monoxide and carbon dioxide
- carbon monoxide and nitrogen
- chlorine and fluorine
- nitrogen and oxygen
Answer/Explanation
Ans:
B
Question
Which gas has the fastest rate of diffusion?
A. \(H_{2}\) B. \(CH_{4}\) C. \(CO_{2}\) D. \(SO_{2}\)
Answer/Explanation
Ans:
A
Question
Which statement explains why ammonia gas, NH3, diffuses at a faster rate than hydrogen chloride gas, HCl ?
A. Ammonia expands to occupy all of the space available.
B. Ammonia has a smaller relative molecular mass than hydrogen chloride.
C. Ammonia is an alkali and hydrogen chloride is an acid.
D. Ammonia molecules diffuse in all directions at the same time.
Answer/Explanation
Ans:
B
Question
The formula of methane is \(CH_4\) and the formula of ethane is \(C_2H_6\).
Which row describes diffusion and the relative rates of diffusion of methane and ethane?
Answer/Explanation
Ans: B