Question
If the temperature difference on the two sides of a wall increases from $100^{\circ} \mathrm{C}$ to $200^{\circ} \mathrm{C}$, its thermal conductivity(a) remains unchanged(b) is doubled(c) is halved(d) becomes four times
Step 1
It is constant for a fixed material and does not depend on the temperature difference. Show more…
Show all steps
Your feedback will help us improve your experience
Akshaya Rs and 81 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
If the thickness of a uniform wall is doubled, the rate of heat transfer through the wall is A. quadrupled. B. doubled. C. halved. D. unchanged. E. one-fourth as much.
A wall has two layers $A$ and $B$, made of two different materials. The thermal conductivity of material $A$ is twice that of $B$. If the two layers have same thickness and under thermal equilibrium, the temperature difference across the wall is $48^{\circ} \mathrm{C}$, the temperature difference across layer $B$ is (a) $40^{\circ} \mathrm{C}$ (b) $32^{\circ} \mathrm{C}$ (c) $16^{\circ} \mathrm{C}$ (d) $24^{\circ} \mathrm{C}$
Heat and Kinetic Theory of Gases
Round 1
A wall is made of equally thick lavers $A$ and $B$ of different materials. Thermal conductivity of $A$ is twice that of $B$. In the steady state, the temperature difference across the wall is $36^{\circ} \mathrm{C}$. The temperature difference across the layer $A$ is (a) $12^{\circ} \mathrm{C}$ (b) $18^{\circ} \mathrm{C}$ (c) $6^{\circ} \mathrm{C}$ (d) $24{ }^{\circ} \mathrm{C}$
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD