Thermodynamics Test

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Thermodynamics Test - 48

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Weekly Quiz Competition

Question 1
4 / -1

A heat engine absorbs heat Q₁ at temperature T₁ and heat Q₂ at temperature T₂. Work done by the engine is (Q₁ + Q₂). This data

A
Violates I^st law of thermodynamics

B
Violates I^st law of thermodynamics if Q₁ is –ve

C
Violates I^st law of thermodynamics if Q₂ is –ve

D
Does not violate Ist law of thermodynamics
Question 2
4 / -1

The molar neutralization heat for and as compared to molar neutralization heat of NaOH and HCl

A
Less

B
More

C
Equal

D
Depends on pressure
Question 3
4 / -1

If the enthalpy of B is greater than of A, the reaction A → B is

A
Endothermic

B
Exothermic

C
Instantaneous

D
Spontaneous
Question 4
4 / -1

Which of the following fuels will have the highest calorific value (kJ/kg)

A
Charcoal

B
Kerosene

C
Wood

D
Dung
Question 5
4 / -1

Which is the best definition of “heat of neutralization”

A
The heat set free when one gram molecule of a base is neutralized by one gram molecule of an acid in dilute solution at a stated temperature

B
The heat absorbed when one gram molecule of an acid is neutralized by one gram molecule of a base in dilute solution at a stated temperature

C
The heat set free or absorbed when one gram atom of an acid is neutralized by one gram atom of a base at a stated temperature

D
The heat set free when one gram equivalent of an acid is neutralized by one gram equivalent of a base in dilute solution at a stated temperature
Question 6
4 / -1

Compounds with high heat of formation are less stable because

A
High temperature is required to synthesise them

B
Molecules of such compounds are distorted

C
It is difficult to synthesis them

D
Energy rich state leads to instability
Question 7
4 / -1

When a gas undergoes adiabatic expansion, it gets cooled due to

A
Loose of kinetic energy

B
Fall in temperature

C
Decrease in velocity

D
Energy used in doing work
Question 8
4 / -1

For a reaction to occur spontaneously

A
(∆H – T∆S) must be negative

B
(∆S + T∆S) must be negative

C
∆H must be negative

D
∆S must be negative
Question 9
4 / -1

A Beckmann thermometer is used to measure

A
High temperature

B
Low temperature

C
Normal temperature

D
All temperature
Question 10
4 / -1

The calorific value of fat is ……….

A
less than carbohydrates and protein

B
less than that of protein but more than carbohydrates

C
less than that of carbohydrates and more than that of protein

D
more than thant of carbohydrates and protein

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Thermodynamics Test - 48

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Thermodynamics Test - 48

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Question 1

Violates Ist law of thermodynamics

Violates Ist law of thermodynamics if Q1 is –ve

Violates Ist law of thermodynamics if Q2 is –ve

Does not violate Ist law of thermodynamics

Question 2

Less

More

Equal

Depends on pressure

Question 3

Endothermic

Exothermic

Instantaneous

Spontaneous

Question 4

Charcoal

Kerosene

Wood

Dung

Question 5

The heat set free when one gram molecule of a base is neutralized by one gram molecule of an acid in dilute solution at a stated temperature

The heat absorbed when one gram molecule of an acid is neutralized by one gram molecule of a base in dilute solution at a stated temperature

The heat set free or absorbed when one gram atom of an acid is neutralized by one gram atom of a base at a stated temperature

The heat set free when one gram equivalent of an acid is neutralized by one gram equivalent of a base in dilute solution at a stated temperature

Question 6

High temperature is required to synthesise them

Molecules of such compounds are distorted

It is difficult to synthesis them

Energy rich state leads to instability

Question 7

Loose of kinetic energy

Fall in temperature

Decrease in velocity

Energy used in doing work

Question 8

(∆H – T∆S) must be negative

(∆S + T∆S) must be negative

∆H must be negative

∆S must be negative

Question 9

High temperature

Low temperature

Normal temperature

All temperature

Question 10

less than carbohydrates and protein

less than that of protein but more than carbohydrates

less than that of carbohydrates and more than that of protein

more than thant of carbohydrates and protein

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Violates I^st law of thermodynamics

Violates I^st law of thermodynamics if Q₁ is –ve

Violates I^st law of thermodynamics if Q₂ is –ve