deltaH

deltaH

11th - 12th Grade

10 Qs

quiz-placeholder

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deltaH

deltaH

Assessment

Quiz

Chemistry

11th - 12th Grade

Practice Problem

Hard

Created by

Momo Chang

Used 1+ times

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10 questions

Show all answers

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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