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it decreases.
Gas pressure decreases when cooling down a closed container.
assuming the balloon is closed, the air pressure would double
The pressure inside will be the same as what the atmospheric pressure was when the lid was closed as long as no heat is added or removed.
In a closed system with constant pressure and no input or output of heat, the gas temperature will remain constant. In that same system, if the pressure is increased, then the gas temperature will also increase. If pressure is decreased, then the gas temperature will decrease.
If you increase the temperature of a gas, its particles (atoms or molecules) will speed up. If it is in a closed container, the pressure will also increase.
Lowering the temperature will cause a decrease in gas pressure in a closed container.
Eventually it will explode because the heat causes the gas particles inside the container to accelerate and thus, create pressure by colliding with each other and the sides of the container. This pressure --> boom.
It is open to allow the blood to flow into the left ventricle.
The particles get closer together and their temperature increases.
It starts out in the right atrium to the tricuspid valve into the right ventricle then the pulmonic valve to the pulmonary arteries. Then it goes to the capillaries to the pulmonary veins then the left atrium to mitral valve then left ventricle which then goes to the aortic valve to the aorta. The oxygenated blood goes through the body then diffusion happens of the hormones, nutrients, and oxygen into the body cells. Then oxygen-poor blood goes to the superior and inferior vena cava and back to the right atrium. This happens over and over again because the circulatory system is a closed system. Hope you learned something and enjoy this answer...