Melting and Boiling Point
Trending Questions
Q.
What is the formula for converting Fahrenheit to Celsius?
Q. What happens with the temperature during the process of melting?
- Temperature increases.
- Temperature remains constant.
- Temperature decreases.
- Temperature suddenly decreases to zero degree celsius.
Q. degree fahrenheit is the same as 50 degree celsius.
- \N
- 122
- 90
- 132
Q. During the process of cooking rice, salt is added before adding rice to the pot of water. Which among the following can be the reason to do so ?
- To increase the boiling point of water.
- To decrease the heat content of water.
- To decrease the boiling point of water.
- To decrease the temperature of the boiling water.
Q.
During the melting of solids, the interparticle space ____________________
Q. With increase in intermolecular force of attraction, melting point of solid .
- decreases
- remains same
- increases
Q. Whu is ice at 273kelvin more effective in cooling than water at same tempreture
Q. At which temperature is the reading of the Fahrenheit scale equal to the Celsius scale?
- 100∘
- None of the above
- −40∘
- 40∘
Q. Identify the basic principle of working of a thermometer.
- Liquid evaporates on heating
- Liquid expands on heating
- Hot air rises up
- Cold air sinks down
Q. calculate the freezing point and boiling point of water in different parameters
Q. Addition of impurities to a solution ________.
- decreases its volume
- decreases its boiling point.
- increases its boiling point.
- decreases its mass
Q. The boiling point of water in Fahrenheit scale is:
- 412∘F
- 310∘F
- 512∘F
- 212∘F
Q.
Thick glass tumblers crack when hot liquid is poured into it due to unequal expansion of the inner and outer layers of glass.
- True
- False
Q. Boiling point of water is ________ .
- 212 degree Fahrenheit
- 273 degree Kelvin
- 100 degree Fahrenheit
- 373 degree Celcius
Q. At what temperature on the Kelvin scale does liquid nitrogen boil? (Its boiling point is −196∘C.)
- 469 K
- 237 K
- 330 K
- 77 K
Q.
The boiling point of water and melting point of ice are _______ and _______ respectively.
273 K ; 0oC
0oC ; 273 K
100 K ; 100 K
373 K ; 273 K
Q.
What is the relationship between melting point and freezing point of a body?
Both occur at the same temperature
Melting point is greater than freezing point
Freezing point is greater than melting point
It cannot be determined