assessment id 159274 18course Look at the following graph and answer the followi

Question

assessment id 159274 18course Look at the following graph and answer the following question: Which Sample absorbs the most Hydrogen? From: Lu, G Q, and X S. Zhao. Nanoporous Materials and Engineering. Imperial College Press, 2004. 5.0 r 45 Sample s12 3.5 3.0 2.5 2.0 10 Sample 2 Sample I 0.5 0 100 150 200 25 300 360400 450 0 Duration (min.) pressure change versus the adsorption time. Sample I was used as synthesized. Sampl 2 was soaked in 37% HCl acid for 48 hrs, rinsed with deionised water, and dried a Figure 15. The amount of hydrogen in weight % stored in SWNT samples, and the 23 K. Samole 3 was pretreated in the same way as sample 2. then vacuum

Explanation / Answer

Sample 3 adsorbs the greatest amount of Hydrogen as evident by Weight percent adsorbed (Sample 3 having the highest 4 %).

Also the the pressure change of the system is highest for sample 3 signifying that more amount of hydrogen got adsorbed in sample 3 with time compared to other samples.

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