Thermodynamics - Second law

Thermodynamics - Second law

11th Grade

5 Qs

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Thermodynamics - Second law

Thermodynamics - Second law

Assessment

Quiz

Chemistry

11th Grade

Hard

Created by

Nilanjana Chakroverty

Used 3+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Entropy increases from solid, liquid to gas. Why?

Molecular disorder increases
Molecular randomness decreases
Molecules are more energetic
Molecules are more reactive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statement is incorrect?

(a) Heat (q) has randomising influence on the system.

(b) Entropy change varies directly with temperature.

(c) Entropy change is a state function.

(d) Temperature is the measure of average chaotic motion of the particle in the system.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statement is correct?

(a) In case of chemical reactions, entropy change shows the rearrangement of atoms or ions from one pattern in the reactants to another

(b) The greater the degree of randomness, higher is the entropy

(c) The crystalline solid state is most ordered, while gaseous state is most disordered

(d) All of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following pair(s) of conditions certain to result in a spontaneous reaction?

(a) Endothermic and decreasing order

(b) Exothermic and increasing disorder

(c) Endothermic and increasing disorder

(d) Exothermic and decreasing disorder

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statement is incorrect regarding spontaneity of a reaction?

(a) The flow of heat is unidirectional from higher temperature to lower temperature

(b) All naturally occurring processes tend to proceed spontaneously in any direction

(c) The gas in a container will not spontaneously contract into one corner

(d) Spontaneous reactions occurs immediately when contact is made between the reactants

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