At a birthday party a child sits on a partially filled balloon, decreasing its v
ID: 1475030 • Letter: A
Question
At a birthday party a child sits on a partially filled balloon, decreasing its volume by 1/2. What is the new pressure inside the balloon?
In a cryogenics (extreme cold) demonstration, a scientist takes a small, partially inflated balloon out of liquid nitrogen (at a very low temperature). As the balloon rests on the table, it begins to grow in size. Explain this phenomenon.
If we have a closed rigid gas container and we inject more gas into the container, what will happen to the internal pressure of the container? Explain your answer.
If we have a closed rigid gas container and we raise the temperature of the container, what will happen to the internal pressure of the container? Explain your answer.
Explanation / Answer
From ideal gas eqation PV =nRT
P2/P1 =V1/V2 = 2
Pressure incresed by 2
PV =nRT
Temperature is increased, so volume of ballon increased
PV =nRT
if n value increased internal pressure will be increased
PV =nRT
if increase the temperature of container , internal pressure will be increased.
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