What is the melting point of ice in degree Celsius?
a) 0
b) 100
c) 50
d) 801
The temperature at which liquid changes into gaseous or vapor form is called…….
a) transition temperature
b) melting point
c) freezing point
d) boiling point
What is the boiling point of water in degree Celsius?
a) 0
b) 100
c) 50
d) 801
The
temperature at which liquid changes into solid is called…….
a) boiling point
b)
melting point
c) freezing point
d) transition temperature
What is the freezing point of water in degree Celsius?
a) 0
b) 100
c) 50
d) 801
Why salt are sprayed in snowy area on roads and highways?
a) to prevent corrosion and rusting
b) to increase the boiling point
c) to lower the freezing point of water
d) to increase evaporation rate
Explanation:Ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius), and that includes ice on roadways. Road salt works by lowering the freezing point of water via a process called freezing point depression. The freezing point of the water is lowered once the salt is added, so it the salt makes it more difficult for water to freeze. A 10-percent salt solution freezes at 20 degrees Fahrenheit (-6 Celsius), and a 20-percent solution freezes at 2 degrees Fahrenheit (-16 Celsius).
