Question

The standard temperature is $- {273^ \circ }{\text{C}}$.
A. True
B. False

Answer 1

The degree of sensible heat or cold, expressed in terms of a specific scale is termed as temperature. There are several scales and units to measure temperature. They are Celsius, Fahrenheit and Kelvin. Temperature is considered as a fundamental quantity.

Complete step by step solution:
Temperature is considered as a physical property since we can identify whether an object is hot or cold by touching the object. The standard temperature is used in various equations like $^ \circ {\text{C}}{{\text{,}}^ \circ }{\text{F, K}}$ which are named as degree Celsius, degree Fahreheit and Kelvin respectively.
The standard temperature is determined from Charles’ law. It explained that at constant pressure, volume of a gas increases linearly with respect to the temperature of the gas. Thus temperature and volume are related by the equation given below:
${\text{V}} = 0.08213 {\text{T}} + 22.4334$, where ${\text{T}}$ is the temperature and ${\text{V}}$ is the volume of the gas.
Simplifying and solving for ${\text{T}}$, we get
${\text{T}} = \dfrac{{({\text{V}} - 22.4334)}}{{0.08213}}$
Volume approaches zero, thereby measuring the minimum temperature.
i.e. temperature will be $273{\text{K}}$
At standard temperature, the liquids and gases will be pure.
But for thermodynamic calculations, we consider standard temperature as $298{\text{K}}$.
Kelvin and degree Celsius is different by a number $273$, i.e. ${0^ \circ }{\text{C}} = 273{\text{K}}$. Thus we can say that the standard temperature is ${0^ \circ }{\text{C}}$ or $273{\text{K}}$.
It is given that the standard temperature is $- {273^ \circ }{\text{C}}$. When it is converted to kelvin scale, It becomes $0{\text{K}}$. This is the absolute temperature which is the minimum possible temperature.
Hence the given statement is false.

So, the correct option is B.

Note: Temperature is measure of the degree of hotness or coldness of an object. While heat is a type of energy which passes from higher temperature to lower temperature. Heat is measured using temperature.