Define absolute zero temperature and one calorie

Define absolute zero temperature and one calorie
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1 Answer

Answer :

Absolute zero temperature:- The temperature at which both pressure and volume of gas become theoretically zero is called absolute zero temperature. 

Calorie: The amount of heat is required to increase the temperature of 1gm of water by 10C is called calorie.
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Description : What does Every object at a temperature above absolute zero?

Last Answer : – Radiates energy

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As the temperature is lowered towards the absolute zero, the value of ∂(∆F)/∂T, then approaches (A) Unity (B) Zero (C) That of the heat of reaction (D) Infinity

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At absolute zero temperature, the __________ of the gas is zero. (A) Pressure (B) Volume (C) Mass (D) None of these

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As the temperature is lowered towards the absolute zero, the value of the quantity (∂∆F/∂T) approaches (A) Zero (B) Unity (C) Infinity (D) None of these

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The third law of thermodynamics states that the (A) Heat capacity of a crystalline solid is zero at absolute zero temperature (B) Heat transfer from low temperature to high temperature source is not possible without external work (C) Gases having same reduced properties behaves similarly (D) None of these

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Last Answer : (A) Heat capacity of a crystalline solid is zero at absolute zero temperature

"At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero". This follows from the (A) Third law of thermodynamics (B) Second law of thermodynamics (C) Nernst heat theorem (D) Maxwell's relations

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The absolute entropy for all crystalline substances at absolute zero temperature is (A) Zero (B) Negative (C) More than zero (D) Indeterminate

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Last Answer : (A) Zero

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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Last Answer : (C) Temperature of the heat reservoir to which a Carnot engine rejects no heat

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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Last Answer : (C) Zero at absolute zero temperature for a perfect crystalline substance

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

Description : 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

Last Answer : C) Δ S° = 0 , Δ E° = 0

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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Last Answer : (A) Almost same for all metals

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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Last Answer : (C) 0°R

_______ 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.

Description : _______ 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.

Last Answer : William Thomson

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

Description : 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

Last Answer : Kelvin

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

Description : 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

Last Answer : Third law of thermodynamics

What is the entropy of a pure substance at a temperature of absolute zero?  a. unity  b. zero  c. infinity  d. undefined

Description : What is the entropy of a pure substance at a temperature of absolute zero?  a. unity  b. zero  c. infinity  d. undefined

Last Answer : zero