TERMOKIMIA(MENENTUKAN NILAI ENTALPI REAKSI)

TERMOKIMIA(MENENTUKAN NILAI ENTALPI REAKSI)

Professional Development

10 Qs

quiz-placeholder

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TERMOKIMIA(MENENTUKAN NILAI ENTALPI REAKSI)

TERMOKIMIA(MENENTUKAN NILAI ENTALPI REAKSI)

Assessment

Quiz

Chemistry

Professional Development

Practice Problem

Medium

Created by

Mardana Nengah

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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

(1) dan (2)

(1) dan (3)

(2) dan (3)

(2) dan (4)

(4) dan (5)

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Apabila 100 mL larutan NaOH 1 M direaksikan dengan 100 mL Larutan HCl 1 M dalam sebuah kalorimeter, ternyata suhu larutan naik dari 29 oC menjadi 37,5oC. Jika kalor jenis larutan dianggap sama dengan kalor jenis air = 4,2 J/groC dan massa jenis air sama dengan massa jenis larutan = 1 gr/mL, maka perubahan entalpi reaksi :

-7,14 kJ/mol

- 45,6 kJ/mol

-71,4 kJ/mol

A. -77,7 kJ/mol

A. -83,3 kJ/mol

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui ∆H of H2O (l) = - 258 kJ/mol

∆H of CO2 (g) = - 393 kJ/mol

∆H of C2H2 (g) = + 227 kJ/mol

Jumlah kalor yang dibebaskan pada pembakaran 0,52 gram C2H2 ( Mr =26 ) adalah….

25,42 kJ

47,06 kJ

67,49 kJ

90.50 kJ

129,80 kJ

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Perhatikan diagram diatas :

+ 790,4 kj

+ 593,8 kj

+ 196,6 kj

– 593,8 kj

– 196,6 kj

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Diketahui energi ikatan rata rata sebagai berikut :

Besarnya ∆H reaksi adisi etena(CH2=CH2) dengan HCl adalah….

-175 kJ/mol

- 44 kJ/mol

+44 kJ/mol

+175 kJ/mol

+475 kJ/mol

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Jika diketahui ∆Hoc CH3OH (g) = - 638 kJ /mol, maka jumlah kalor yang dihasilkan pada pembakaran sempurna 48 gr Metanol (CH3OH) adalah…(Ar C =12, O = 16 dan H = 1)

159 kJ

319 kJ

638 kJ

957 kJ

1276 kJ

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Perhatikan diagram ∆H berikut ini.

+99 kj

-99 kj

-297 kj

+495 kj

-495 kj

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