remot 25 0 ml of water is poured into a pop can. It is then heated. When it boils, it is iemoved from the heat and turned upside down into a beaker of cold water. The can then implodes (is crushed). Explain why this happens. 33. About T: 3 MARK; C: 2 MARK] 34. Assuming that gases behave ideally, if the temperature is 280°C with a pressure of 100.5 kPa, and 15.0 g of ammonium nitrate (NHNO,) decomposes what is the total volume of gas produced? (Hint: ammonium nitrate decomposes into nitrogen, hydrogen, and oxygen gas) [A: 4 MARK] A 1L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 1.00 x 101 torr. It is filled with helium at 23°C and 0.991 atm and placed in boiling water at exactly 100°C. Will the safety valve open? (Hint: 760 torr 1 atm) 35. IT: 5 MARK]
Solution
Ans 33 :
When the can was heated , the water inside boils and it pushes the air inside the can outside and itself gets converted into water vapour.
Now when this can with water vapour is inverted over beaker of cold water the vapour condenses and a partial vaccum is created inside the can.
This causes the pressure on inside the can lower than that of external pressure . The difference is more than the can can bear so it crashes.
.
remot 25 0 ml of water is poured into a pop can- It is then heated- Wh.docx
1. remot 25 0 ml of water is poured into a pop can. It is then heated. When it boils, it is iemoved
from the heat and turned upside down into a beaker of cold water. The can then implodes (is
crushed). Explain why this happens. 33. About T: 3 MARK; C: 2 MARK] 34. Assuming that
gases behave ideally, if the temperature is 280°C with a pressure of 100.5 kPa, and 15.0 g of
ammonium nitrate (NHNO,) decomposes what is the total volume of gas produced? (Hint:
ammonium nitrate decomposes into nitrogen, hydrogen, and oxygen gas) [A: 4 MARK] A 1L
steel tank is fitted with a safety valve that opens if the internal pressure exceeds 1.00 x 101 torr.
It is filled with helium at 23°C and 0.991 atm and placed in boiling water at exactly 100°C.
Will the safety valve open? (Hint: 760 torr 1 atm) 35. IT: 5 MARK]
Solution
Ans 33 :
When the can was heated , the water inside boils and it pushes the air inside the can outside and
itself gets converted into water vapour.
Now when this can with water vapour is inverted over beaker of cold water the vapour condenses
and a partial vaccum is created inside the can.
This causes the pressure on inside the can lower than that of external pressure . The difference is
more than the can can bear so it crashes.
![remot 25 0 ml of water is poured into a pop can. It is then heated. When it boils, it is iemoved
from the heat and turned upside down into a beaker of cold water. The can then implodes (is
crushed). Explain why this happens. 33. About T: 3 MARK; C: 2 MARK] 34. Assuming that
gases behave ideally, if the temperature is 280°C with a pressure of 100.5 kPa, and 15.0 g of
ammonium nitrate (NHNO,) decomposes what is the total volume of gas produced? (Hint:
ammonium nitrate decomposes into nitrogen, hydrogen, and oxygen gas) [A: 4 MARK] A 1L
steel tank is fitted with a safety valve that opens if the internal pressure exceeds 1.00 x 101 torr.
It is filled with helium at 23°C and 0.991 atm and placed in boiling water at exactly 100°C.
Will the safety valve open? (Hint: 760 torr 1 atm) 35. IT: 5 MARK]
Solution
Ans 33 :
When the can was heated , the water inside boils and it pushes the air inside the can outside and
itself gets converted into water vapour.
Now when this can with water vapour is inverted over beaker of cold water the vapour condenses
and a partial vaccum is created inside the can.
This causes the pressure on inside the can lower than that of external pressure . The difference is
more than the can can bear so it crashes.](https://image.slidesharecdn.com/remot250mlofwaterispouredintoapopcan-itisthenheated-wh-230131192839-e16513cf/85/remot-25-0-ml-of-water-is-poured-into-a-pop-can-It-is-then-heated-Wh-docx-1-320.jpg)
