Q. Thermal conductivity is defined as the heat flow per unit time

View solution

Q. Mark the matter with least value of thermal conductivity

View solution

Q. Which one of the following forms of water have the highest value of thermal conductivity?

View solution

Q. The average thermal conductivities of water and air conform to the ratio

View solution

Q. Identify the very good insulator

View solution

Q. Most metals are good conductor of heat because of

View solution

Q. Heat conduction in gases is due to

View solution

Q. The heat energy propagation due to conduction heat transfer will be minimum for

View solution

Q. Cork is a good insulator because

View solution

Q. Choose the false statement

View solution

Q. What is the thermal conductivity of asphalt in W/m K?

View solution

Q. Which one is having highest thermal conductivity?

View solution

Q. What is the thermal conductivity of magnetite in W/m K?

View solution

Q. Which one is having lowest thermal conductivity?

View solution

Q. What is the thermal conductivity of coal in W/m K?

View solution

Q. What is the thermal conductivity of cotton in W/m K?

View solution

Q. What is the thermal conductivity of apple in W/m K?

View solution

Q. What is the thermal conductivity of ice in W/m K?

View solution

Q. From the concept of kinetic theory, mean travel velocity of the gas molecules is prescribed by the relation
Where,
G = Universal gas constant
M = Molecular weight of the gas
T = Absolute temperature

View solution