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State the third law of thermodynamics.

Important Questions on Thermodynamics

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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
The efficiency of a heat engine is given by
EASY
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
The entropy of a perfectly crystalline material is zero at 0 K. This is statement of
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
In actual practice, it is impossible to attain the low temperature (absolute zero). This lowering of temperature explains which law of thermodynamics?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Write statement for the IIIrd law of thermodynamics?
MEDIUM
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
The true statement amongst the following is
HARD
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
State third law of thermodynamics. What is its usefulness?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Which of the following is the correct expression for ∆S?
HARD
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
For a perfectly crystalline solid Cp,m = aT3 , where 'a' is constant. If Cp,m is 0.42  J K mol at 10 K, molar entropy at 20 K is :
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics

Identify the correct statement regarding entropy:

                               

MEDIUM
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Identify the correct statement regarding entropy.
MEDIUM
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
According to the third law of thermodynamics, which one of the following quantities for a perfectly crystalline solid is zero at absolute zero?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Third law of thermodynamics is used to determine the
MEDIUM
Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Why is it impossible for any substance to have an absolute entropy zero at temperature greater than 0 K?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Among the following, the reaction that is accompanied by a decrease in the entropy is
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Which law of thermodynamics help in calculating entropy at different temperatures?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
The law formulated by Nernst is
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
At what temperature is the entropy of a perfectly crystalline substance taken as zero?
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Cotyledons are also called-
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Entropy is a measure of disorder. For perfect crystalline substances at 0K, entropy becomes:
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Chemistry>Physical Chemistry>Thermodynamics>Third Law of Thermodynamics
Which of the following allotropes of sulphur has maximum S at 0° K?