Temperature is a relative measure of hotness or coldness of a body. An object at a higher temperature is said to be hotter than the one at a lower temperature. The S.I. unit of temperature is Kelvin(K).
(We must keep it in our mind that , Heat and temperature are not the same thing , heat is the flow of energy , whereas temperature is a microscopic property of body.)
Important numericals on Thermal properties of matter.
A- Numericals based on temperature and( temperature scale)
Formula used in the following questions-
[ ( Tc-0)/100 = (tF-32)/180 = (tK-273)/100 = (tr-F.P.)/(B.P. –F.P.) ]
1. An object has a temperature of 500F. What is the temperature in degrees Celsius and in Kelvin?
[Ans- 100C, 283.15K]
2. A pan of water is heated from 250C to 800C. What is the change in the temperature in Kelvin scale and on the Fahrenheit scale? [Ans- 55K,990F]
3. A faulty thermometers reads 50C in melting ice and 990C in steam .Find the correct temperature in 0F when this faulty thermometer reads 520C. [Ans-1220F]
4. At what temperature is the Fahrenheit scale reading equal to half that on the Celsius scale? [Ans-0.6670F]
5. At what temperature the reading on both Celsius and Fahrenheit scale remain the same? [Ans—400C]
6. The triple points of neon and carbon dioxide are 24.57K and 216.55K respectively. Express temperatures on the Celsius and Fahrenheit scale. [Ans—248.580C, -56.60C, -415.440F,-69.880F].
After solving these questions students have to learn- Thermal expansion, CLICK HERE-
To solve the questions based on the thermal expansion-CLICK HERE