Which material would be the better insulator: clear acrylic or black timber, and why? Which would...
Which material would be the better insulator: clear acrylic or black timber, and why? Which would have the lower thermal conductivity value, k?
Homework Answers
Answer: -
- Thermal conductivity of clear acrylic = 0.2 W/mK .
- Thermal conductivity of the black timber lie in the range of 0.15 to 0.17 W/mK .
Black timber has the lower value of thermal conductivity value
Higher the thermal conductivity , higher is the rate of heat transfer and lesser is the insulating behaviour so black timber is the better insulator than clear acrylic because of low value of thermal conductivity .
Add Answer to:
Which material would be the better insulator: clear acrylic or
black timber, and why? Which would...
Which of the following two windows would insulate better, and by how many times lower would...
Which of the following two windows would insulate better, and by how many times lower would the rate of thermal conduction through it be compared to the other? Take both to be airtight and ignore radiative losses. Each window has a total size of 1.2 m high by 0.6 m wide, with the outer 2 cm edge of each window being the frame. For simplicity, take the frames to have the same thickness as the glass. For the first window,...
What would make a better thermal conductor – a material with a lower heat capacity, or...
What would make a better thermal conductor – a material with a lower heat capacity, or a material with a higher heat capacity? Explain why?
Which of the following two windows would insulate better, and by how many times lower would...
Which of the following two windows would insulate better, and by how many times lower would the rate of thermal conduction through it be compared to the other? Take both to be airtight and ignore radiative losses. Each window has a total size of 1.2 m high by 0.6 m wide, with the outer 2 cm edge of each window being the frame. For simplicity, take the frames to have the same thickness as the glass. For the first window,...
given a metal and an insulator which one would you choose as a thermal conductor at...
given a metal and an insulator which one would you choose as a thermal conductor at 0.3K and 100K
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium...
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium fluoride? Briefly explain why
A cross-section of a material is shown below. A heater on the right side provides constant...
A cross-section of a material is shown below. A heater on the right side provides constant heat transfer (0) and the temperature of the right surface is held constant at Tr. The solid line shows the temperature distribution through the material. If the only change is that the material is replaced by one with lower thermal conductivity, k, will T, be higher or lower than the value for the original material? Draw a line through the material showing the new...
o What type of material would be best suited for the thermal insulation of a high-temperature furnace? Why? o What...
o What type of material would be best suited for the thermal insulation of a high-temperature furnace? Why? o What type of material would be best suited for lightweight air freight containers? Why?
o What type of material would be best suited for the thermal insulation of a high-temperature furnace? Why? o What type of material would be best suited for lightweight air freight containers? Why?
Choose which would have greater price elastic demand and explain why: 1. Black coffee or Starbucks...
Choose which would have greater price elastic demand and explain why: 1. Black coffee or Starbucks coffee?
Which of the following is NOT a guideline for better cost estimation? A. Have clear guidelines...
Which of the following is NOT a guideline for better cost estimation? A. Have clear guidelines for creating estimates. B. Use experienced developers. C.Update estimates at the end of the project. D. Use historical data.
which one would give the better yield? Why 6. Your task is to make i-Prome by...
which one would give the better yield? Why
6. Your task is to make i-Prome by one of the following reactions. Which one would give the better yield? Why? i Pr I + MOONa G ibrome + Nał 19 TRONa+ Me I — Prome + Na I
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium fluoride? Briefly explain why
A cross-section of a material is shown below. A heater on the right side provides constant heat transfer (0) and the temperature of the right surface is held constant at Tr. The solid line shows the temperature distribution through the material. If the only change is that the material is replaced by one with lower thermal conductivity, k, will T, be higher or lower than the value for the original material? Draw a line through the material showing the new...
o What type of material would be best suited for the thermal insulation of a high-temperature furnace? Why? o What type of material would be best suited for lightweight air freight containers? Why?
o What type of material would be best suited for the thermal insulation of a high-temperature furnace? Why? o What type of material would be best suited for lightweight air freight containers? Why?
which one would give the better yield? Why
6. Your task is to make i-Prome by one of the following reactions. Which one would give the better yield? Why? i Pr I + MOONa G ibrome + Nał 19 TRONa+ Me I — Prome + Na I
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago