What is meant by absolute zero temperature?

What is meant by absolute zero temperature?
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1 Answer

Answer :

The temperature -273^oC is called absolute zero or zero Kelvin.
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Absolute zero temperature signifies the (A) Minimum temperature attainable (B) Temperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in (C) Temperature of the heat reservoir to which a Carnot engine rejects no heat (D) None of these

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Entropy, which is a measure of the disorder of a system, is: (A) Independent of pressure (B) Independent of temperature (C) Zero at absolute zero temperature for a perfect crystalline substance (D) All (A), (B) & (C)

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At absolute zero temperature, for any reaction involving condensed phases (A) Δ G° = 0 , Δ H° = 0 (B) Δ H° = 0 , Δ S° = 0 (C) Δ S° = 0 , Δ E° = 0 (D) Δ S° = 0 , Δ Cp° = 0

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Change in volume of metals from absolute zero temperature to their melting points is (A) Almost same for all metals (B) Different for different metals (C) Less for low melting point metals (D) Less for high melting point metals

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Absolute zero pressure can be attained at a temperature of (A) 0°C (B) 50°K (C) 0°R (D) None of these

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_______ codified the first two laws of thermodynamics and deducedthat the absolute zero of temperature is 273.15° C. she was honouredfor this with the naming of the Kelvin temperature scale.

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A temperature scale whose zero point is absolute zero, the temperature of “0” entropy at which all molecular motion stops.  a. Celsius  b. Fahrenheit  c. Kelvin  d. Rankine

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Which law that states “Entropy of all perfect crystalline solids is zero at absolute zero temperature”?  a. Zeroth law of thermodynamics  b. First law of thermodynamics  c. Second law of thermodynamics  d. Third law of thermodynamics

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