推 maskedsheep:我也記得是1:1 和莫耳數比較多的 所以也選D 04/27 22:18
→ marton:兩題我的答案都跟你一樣:) 04/28 00:44
推 rookie1124:第九題 > <，很想選D。如果他沒開始跳也不會落下。 05/19 05:02
9. When a skydiver free-falls through the air, the process is
(A) Non-spontaneous because he is accelerating due to the force
applied by gravity
(B) Non-spontaneous because he is losing potential energy
(C) Non-spontaneous because he has planned the jump for two weeks
(D) Spontaneous
我選A 因為會掉下來 是因為有外力作用 對吧??
10. Which of the following has the highest buffered capacity?
(A) 0.1M H2PO4^- / 0.1M HPO4^2-
(B) 0.5M H2PO4^- / 0.1M HPO4^2-
(C) 0.1M H2PO4^- / 0.5M HPO4^2-
(D) 0.5M H2PO4^- / 0.5M HPO4^2-
題目的^- 跟^2- 是價數
我選D 因為 應該是要選1:1 和 莫耳數比較多的 對嗎??
請各位高手幫忙確認一下 感激~~
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