For each of the situations below identify what remains mostly constant (unchanged)
A) Temperature B) Volume or C) Pressure:
Steam is generated inside a popcorn kernel
An inflated balloon is put in a freezer
Your diaphragm expands the lungs as you breath
A) Temperature: Steam is generated inside a popcorn kernel. The temperature increases as steam is formed due to the heat applied.
B) Volume: An inflated balloon is put in a freezer. The volume of the balloon remains mostly constant as it is not being compressed or expanding.
C) Pressure: Your diaphragm expands the lungs as you breathe. The pressure inside the lungs increases as the diaphragm contracts and expands to allow air in and out.
A) Temperature: Steam is generated inside a popcorn kernel. In this situation, the temperature changes as the popcorn kernel heats up and eventually pops.
B) Volume: An inflated balloon is put in a freezer. In this situation, the volume remains mostly constant. The cold temperature in the freezer may cause the volume of the gas inside the balloon to slightly decrease, but for the most part, the volume of the balloon remains the same.
C) Pressure: Your diaphragm expands the lungs as you breathe. In this situation, the pressure remains mostly constant. When you inhale, the diaphragm contracts, creating a pressure drop in the lungs, allowing air to enter. However, the pressure itself remains relatively constant throughout the breathing process.
A) Temperature remains mostly constant:
- Steam is generated inside a popcorn kernel: In this situation, the temperature remains mostly constant as the heat provided causes the water inside the kernel to turn into steam.
B) Volume remains mostly constant:
- An inflated balloon is put in a freezer: When an inflated balloon is put in a freezer, the volume of the balloon remains mostly constant as the cold temperature does not directly affect the size of the balloon.
C) Pressure remains mostly constant:
- Your diaphragm expands the lungs as you breathe: When your diaphragm expands the lungs as you breathe, the pressure remains mostly constant. The contraction and relaxation of the diaphragm change the volume in the lungs, causing air to either enter or exit, but the pressure remains relatively stable.