
deltaH
Authored by Momo Chang
Chemistry
11th - 12th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
進行一個放熱反應後,系統的溫度會如何變化?
上升
下降
不變
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
測定反應熱的標準狀況為?
1 atm, 0℃
1 atm, 25℃
1 atm, 1000℃
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列何種物質的生成熱為零?
SO3
C(g)
H2O(l)
I2(s)
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列哪一個方程式可代表C2H5OH的生成熱? (係數未平衡)
C2H6(g)+O2(g) → C2H5OH(l)
CO2(g)+ H2O(g) → C2H5OH(l)+O2(g)
C(s)+H2(g)+O2(g) → C2H5OH(l)
C(s)+ H2O(g) → C2H5OH(l)+O2(g)
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列哪些物質在標準狀態下的燃燒熱為0?
(應選2項)
O2(g)
Na(s)
C2H5OH(l)
H2O(l)
Fe(s)
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
有關ΔH之性質,下列何者正確?
(應選3項)
不論在任何溫度下所測得的反應熱相同
反應熱大小與反應物之莫耳數有關
反應熱屬於動能的一種
反應熱與反應物和生成物的前後狀態皆有關
反應熱為熱含量的變化量,即總能的變化量
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
H2(g)+O2(g) → H2O(l)+68千卡 ;
C(s)+O2(g) → CO2(g)+94千卡;
C(s)+2H2(g) → CH4(g)+18千卡;
試求1莫耳甲烷完全燃燒時的反應熱為?仟卡
212
204
180
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