Answer:
a)250.4 °C
Explanation:
Temperature at which pressure of water become equal to the surrounding pressure is called boiling temperature .
The boiling temperature of water at 4 MPa is 250.4 °C.As we know that when pressure of water increases then the boiling point of water also increases.The boiling point of water at 1 ar is 100 °C.So the boiling point of substance is not constant it varies with environment .
Answer:
omg it would burn our insides. we're not made of metal lols
Explanation:
you should mark me as brainliest :)
Answer: Find the answer in the explanation
Explanation:
Helmets are manufactured by the use of different categories of polymer. The common material used for manufacturing of helmets are:
1. Polycarbonate
2. Styrofoam
3. Foam
4. Acrylic and polycarbonate
5. Nylon
All the polymer used for the manufacturing of helmets fall under synthetic and semi synthetic categories of polymer.
The styrofoam is classified under addition polymerization. While the nylon is classified under condensation polymerization.
The low density polythene used is classified as branch chains polymer. While the polycarbonate is of high tensile strength with strong mechanical properties.