
第34節十分鐘小測
Authored by QTSSCI QTSSCI
Science
1st Grade

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 下列哪項是放熱過程?
A 冰的熔解
B 水的沸騰
C 燃燒作用
D 裂解作用
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3 下列哪項反應表示溴化鍶的標準生成焓變?
A Sr2+(s) + 2Br‒(g) → SrBr2(s)
B Sr(s) + Br2(l) → SrBr2(s)
C Sr2+(g) + 2Br‒(g) → SrBr2(s)
D Sr(g) + Br2(l) → SrBr2(s)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 只有 (1) 和 (2)
B 只有 (1) 和 (3)
C 只有 (2) 和 (3)
D (1)、(2) 和 (3)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 下列哪項有關以下熱化學方程式的陳述正確?
N2(g) + 2O2(g) → 2NO2(g) ΔH = +67.6 kJ
A 每摩爾NO2的生成放出67.6 kJ 的能量。
B 每摩爾NO2的生成吸收67.6 kJ 的能量。
C 每摩爾NO2的生成放出33.8 kJ 的能量。
D 每摩爾NO2的生成吸收33.8 kJ 的能量。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6 在一個熱容量為387 J K–1的熱量計內,讓400.0 cm3的 0.600 mol dm–3 HNO3(aq) 與400.0 cm3的 0.300 mol dm–3 Ba(OH)2(aq) 混合。
兩種溶液的起始温度都是18.9 °C,溶液混合物的最終温度是22.5 °C。
HNO3(aq) 與Ba(OH)2(aq) 的中和焓變是多少?
(溶液混合物的密度 = 1.00 g cm–3;溶液混合物的比熱容= 4.18 J g–1 K–1)
A +134 kJ mol–1
B +55.8 kJ mol–1
C –55.8 kJ mol–1
D –134 kJ mol–1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A w > x > y > z
B w > y > x > z
C w = y < x = z
D w = y > x = z
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