Home › Tamil Nadu SSLC (Class 10) › Physics › Thermal Physics › Temperature is best described as a measure of wh…
Temperature is best described as a measure of which property of the molecules of a substance?
ATheir average kinetic energy
BTheir total potential energy
CTheir total mass
DTheir number per unit volume
Answer & Solution
Correct answer: A. Their average kinetic energy
1. Temperature is the degree of hotness and decides the direction of heat flow.
2. At the molecular level it reflects the average kinetic energy of the molecules.
3. So temperature is a measure of average kinetic energy.
4. Mass and number density do not change with temperature, so those options are wrong.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 3 Thermal Physics "Temperature", p.39_
Related questions
In the ideal gas equation $PV = RT$, what is the value of the universal gas constant $R$?Under what condition does a real gas behave most nearly like an ideal gas?Avogadro's law states that, at constant pressure and temperature, the volume of a gas is dCharles's law states that, at constant pressure, the volume of a gas is related to its temAt constant temperature, a gas of volume 20 cc is compressed until its pressure becomes foAccording to Boyle's law, what remains constant when a fixed mass of gas is compressed at A liquid in a 70 ml container starts at level $L_1 = 50$ ml, falls to $L_2 = 48.5$ ml, theA liquid is heated in a container. The level first falls and then rises. Which statement a