Take a boiling tube and stretch a balloon tightly over its neck. Insert the boiling tube in a beaker containing hot water. Wait for 2-3 mins and observe the changes that take place in shape of balloon. Now take out the boiling tube and allow it to cool. Now keep it in a ice cooled water for 2-3 mins and observe the changes in shape of the balloon. 19.1-What change do you expect when the tube containing the stretched balloon was kept in a beaker containing hot water?
option for the answer:
a) There will be no change in the shape of the balloon
b) Balloon gets inflate
c) Balloon gets deflate
d) Shape of balloon becomes distorted.
PLEASE HELP ME FAST I HAVE MY EXAM GOING ON....
Answers
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage ? 1 Take a boiling tube and stretch a balloon tightly over its neck. Insert the boiling tube in a beaker containing hot water. Wait for 2-3 minutes and observe the changes that take place in shape of the balloon. Now take out the boiling tube and allow it to cool to room temperature. When it has cooled down place it in a beaker containing ice-cold water for 2-3 minutes and observe the changes in shape of the balloon. What change do you expect when the tube containing the stretched balloon was kept in a beaker containing hot water?
A) There will be no change in the shape of the balloon
B) Balloon gets inflated
C) Balloon gets deflated
D) Shape of balloon becomes distorted
Correct Answer: B
Solution :
It gets inflated.
Answer:
a1 yes, Gases, such as the air or helium inside a balloon, take the shape of the containers they're in. They spread out so that the space is filled up evenly with gas molecules. ... When cooled, the kinetic energy of the gas molecules decreases, meaning they move more slowly and have less frequent and weaker collisions.
a2 the balloon gets inflated when it is filled with air.
a3 Since helium is much less massive than nitrogen and oxygen in the air, helium balloons float. However, the smaller size also explains why helium balloons deflate so quickly. ... At some point, the pressure of gases on both the inside and outside of the balloon becomes the same and the balloon reaches equilibrium.
a4 yes, it becomes distroted
Explanation: