Why is the bottom of a kettle blackened and top polished?
Answer / guest
The bottom is blackened, so that it should absorb more heat
from the fire. The top is polished, so that the radiation
losses are less.
| Is This Answer Correct ? | 2 Yes | 0 No |
What is Liquation ?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason????????? When a cool glass rod is suudenly heatd, it cracks. Why?????????
Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?
in Einstein's mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons
which gas is called laughing gas?
What is chemistry ?
who is the king of chemistry?
Explain the Purification of Organic Compounds ?
What is Nutralication ?
Explain the Boyle?s law ?
what is the indicator used?
why evolution select ATPin many places like metabolism and other places rather then GTP, TTP etc. and why GTP selected in activation of G-alfa in G protein signalling ??????