6.
c. Answer in short.
th hot climate.
1. What is the direction of heat flow?
2. Give the formulae for interconversion of temperature scales.
4. Usually liquids are bad conductors of heat, but there are certain liquids that are good conductors.
3. In how many ways can heat be transmitted through matter?
Name any such liquid and give its application.
5. What do you understand by the term freezing point? Which other temperature is mostly the same
as the freezing point of given substances?
6. How can heat from the sun reach the earth when we know that there are no particles in the outer
space?
Answers
Answer:
Answer.
Explanation:
1. From hot body toward cold body.
2.The equation used for the interconversion between the Fahrenheit and Celsius temperature scales is in reality the general case of the straight-line equation (y = ax + b).
F = Degrees Fahrenheit
C = Degrees Celsius
K = Degrees Kelvin (kelvins) = Degrees C above absolute zero
R = Degrees Rankine = Degrees F above absolute zero.
3.The three types of heat transfer
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transfered in a combination of these three types and seldomly occurs on its own.
4.Mercury is the liquid which is good conductor but it is expensive and dangerous.
5.Freezing point, temperature at which a liquid becomes a solid. As with the melting point, increased pressure usually raises the freezing point. The freezing point is lower than the melting point in the case of mixtures and for certain organic compounds such as fats.
6.Through radiation, because radiation does not need matter to transfer heat or any medium.