課題八 化學反應與能量

課題八 化學反應與能量

7th - 9th Grade

20 Qs

quiz-placeholder

Similar activities

كيمياء حراريه 3

كيمياء حراريه 3

9th Grade

16 Qs

Kimia kelas XI

Kimia kelas XI

9th - 12th Grade

20 Qs

Energy in Chemical Reactions

Energy in Chemical Reactions

9th - 11th Grade

15 Qs

KUIS Termokimia

KUIS Termokimia

9th - 12th Grade

19 Qs

Thermochemistry Pre-Assessment

Thermochemistry Pre-Assessment

9th Grade

23 Qs

Mole Conversions

Mole Conversions

9th - 11th Grade

20 Qs

Olympiad Electrochem

Olympiad Electrochem

9th - 12th Grade

15 Qs

Percent Composition & Empirical/Molecular Formula

Percent Composition & Empirical/Molecular Formula

9th Grade

15 Qs

課題八 化學反應與能量

課題八 化學反應與能量

Assessment

Quiz

Chemistry

7th - 9th Grade

Hard

Created by

Chemistry Aristo

Used 12+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪項正確顯示碘的標準態?

A. I(s)

B. I2(s)

C. I2(l)

D. I2(g)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪個過程是吸熱的?

A. 炭的燃燒

B. 利用熟石灰降低土壤的pH值

C. 把辛烷在無氧的環境下加熱以生成丙烷

D. 把氯化鈣與硫酸鈉混合以生成硫酸鈣

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪個反應有對體系作功?

A. 2O3(g) → 3O2(g)

B. H2(g) + O2(g) → H2O2(l)

C. H2(g) + Br2(l) → 2HBr(g)

D. Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

下列哪項有關圖中反應的陳述不正確

A. 反應混合物的温度上升。

B. 反應向四周釋出熱能。

C. 生成物的總焓少於反應物的總焓。

D. 形成鍵合時釋出的能量少於斷裂鍵合時所需的能量。

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

某反應的內能變化和對外界作的功分別為–256 kJ和+35 kJ。在固定壓強下,該反應的熱能變化是多少?

A. –221 kJ

B. +221 kJ

C. –291 kJ

D. +291 kJ

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

假設下列各個過程中的CCl4質量相同,哪個過程吸收的熱能最多?

A. CCl4(g) → CCl4(l)

B. CCl4(l) → CCl4(g)

C. CCl4(g) → CCl4(s)

D.CCl4(s) → CCl4(g)

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

沸騰1 mol液態BrF3的焓變是多少?

A. –45.5 kJ mol–1

B. +45.5 kJ mol–1

C. –91.0 kJ mol–1

D. +91.0 kJ mol–1

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?