
The correct value of on the Kelvin scale is
A. 273.15 K
B. 273.16 K
C. 273 K
D. 273.2 K
Answer
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Hint: Here in the question, we need to determine the equivalent value of in Kelvin scale. For this, we will use the formula for the conversion of degree Celsius to Kelvin and vice versa where is the absolute value of the Celsius scale and K is the absolute value in the Kelvin scale.
Complete step by step answer:
The temperature of an object can be measured in different units. Kelvin is the SI unit of the temperature. It is denoted by the letter “K”. Initially, all the measurement and calculations were made on the degree Celsius only but when the Kelvin has been universally accepted as the SI unit of temperature, there established a relation between degree Celsius and the Kelvin as where 273.15 comes from the freezing point of ice and is the absolute value of the Celsius scale.
Now, substituting in the formula to determine the equivalent Kelvin scale as:
Hence, we can say that the correct value of on the Kelvin scale is 273.15 Kelvin.
So, the correct answer is “Option A”.
Note:
Students should not get confused with the terms and . These two terms are similar and are written in two different forms only. The freezing point of the ice is which is similar to in Kelvin scale. Moreover, the sign the values of the temperature should be kept with the sign convention as well.
Complete step by step answer:
The temperature of an object can be measured in different units. Kelvin is the SI unit of the temperature. It is denoted by the letter “K”. Initially, all the measurement and calculations were made on the degree Celsius only but when the Kelvin has been universally accepted as the SI unit of temperature, there established a relation between degree Celsius and the Kelvin as
Now, substituting
Hence, we can say that the correct value of
So, the correct answer is “Option A”.
Note:
Students should not get confused with the terms
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