A sample of water is heated from 15 degrees Celsius to 35 degrees Celsius. What is the temperature change in Kelvin?
The temperature change is 20 K.
To determine the temperature change in Kelvin, when a sample of water is heated from 15 degrees Celsius to 35 degrees Celsius, follow these steps:
- First, understand that the Kelvin temperature scale is an absolute temperature scale that starts at absolute zero. Importantly for this question, the size of one degree Celsius is exactly equal to the size of one Kelvin. This means that any temperature change in Celsius is numerically equal to the same temperature change in Kelvin.
- Calculate the temperature change in degrees Celsius:
- Initial temperature: \(15^\circ C\)
- Final temperature: \(35^\circ C\)
- Temperature change = Final - Initial = \(35^\circ C - 15^\circ C = 20^\circ C\)
- Since \(1^\circ C = 1 \, \text{K}\), the temperature change in Kelvin will also be:
- Temperature change = \(20 \, \text{K}\)
- Thus, the temperature change from 15 degrees Celsius to 35 degrees Celsius is \(20 \, \text{K}\).
Therefore, the correct answer is: The temperature change is 20 K.
Similar Questions
How much is 1 calorie in joules?
A laboratory record shows a distance of 0.004 kilometers between two points. How should this be written in SI units of length for a scientific report?
What is the typical temperature range covered by a laboratory thermometer used in school experiments?
A thermometer shows a reading of 37 degrees Celsius. What is the corresponding temperature in Kelvin?
A laboratory thermometer has a range from -10 degrees Celsius to 110 degrees Celsius and 120 equal divisions. What is the smallest value that this thermometer can read?
If a rectangular field is measured to be 120 meters long and 75 meters wide, what is its area in SI units?
Which of the following has both magnitude and direction, making it a vector quantity?
Which of the following statements correctly matches the units of mass with their respective systems?
Why is a room thermometer generally mounted vertically on a wall?
Important Questions from Units and Measurements
The unit of measurement of noise is
Unit is ______.
Intensity of radioactivity is measured in -
Which of the following is not a fundamental quantity?
If the error in the measurement of the radius of the sphere is 1%, then the error in the measurement in its volume is
