Thermal conductivity of a material may be defined as the?

Question

Thermal conductivity of a material may be defined as the?

Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C
Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C
Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces
All of the above

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

Related Questions

Thermal conductivity of refractory bricks?

1 Answers 4 Views

Refractories used in/for __________ should have low thermal conductivity.?

1 Answers 4 Views

The thermal conductivity of hydrogen is ______ times that of air?

1 Answers 4 Views

________ has the highest value of thermal conductivity.?

1 Answers 4 Views

A composite slab has two layers of different materials with thermal conductivities k₁ and k₂. If each layer has the same thickness, then the equivalent thermal conductivity of the slab will be?

1 Answers 5 Views

Thermal conductivity of a material does not depend upon its?

1 Answers 4 Views

If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law.?

1 Answers 5 Views

Thermal conductivity of a conducting solid material depends upon its?

1 Answers 5 Views

If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.?

1 Answers 20 Views

For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally?

1 Answers 5 Views

AhmedNazir · Accepted Answer · 2022-09-01T13:21:41+06:00

Answer: Option 4

Thermal conductivity of a material may be defined as the - Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C -Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C -Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces