Extent of reaction

Extent of reaction

1st - 12th Grade

6 Qs

quiz-placeholder

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Extent of reaction

Extent of reaction

Assessment

Quiz

Chemistry

1st - 12th Grade

Easy

Created by

Rémi Aymard

Used 7+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the unit of the extent of reaction?

Joule

Watt

Mole

Gram

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

At t=0, what is the value of ξ?

1

0

Infinity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is this equation well balanced?

2Fe + 2Cl2 = 2FeCl3

True 

False

Answer explanation

There are 4 Cl elements in the reactants and 6 in the products. It should be 3 Cl2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Fill in the ? 

n(Fe)- ξ

n(Cl2)- 2 ξ

2 ξ

n(Fe)- 2ξ

Answer explanation

At the initial state the quantity of Fe is n(Fe). The stoechiometric number of Fe is 2 so when the reaction starts the quantity of Fe equals the initial quantity minus 2 times the extent of reaction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Fill in the ?

n(Cl2) - 2ξ

n(Cl2) - 3ξ

3ξ

2ξ

Answer explanation

There is n(Cl2) quantity at the beginning. When the reaction starts then because the stoechiometric number is 3 the quantity will evolve to n(Cl2)-3ξ

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Fill in the ?

 ξ

n(FeCl3) - 2 ξ

2 ξ

0

Answer explanation

The initial quantity is 0. The stoechiometric number is 2 so when the reaction starts the quantity equals 2 ξ