Demo #1:
Two Erlenmeyer flasks, 500mL and 250mL, two peeled hard-boiled eggs, water, and a square burner. The larger flask is taken off the heat after the water started boiling, and an egg was placed on the opening of the flask. The egg is then slowly being sucked into the flask until it plops into the water. The same steps were taken with the 2nd 250mL flask however, the entire egg didn’t make it into the flask; it broke in half.
The pressure of the air inside the flask increases and the oxygen inside the flask cools. This, resulting decrease in pressure, creates a partial vacuum in the flask, which either forces the egg into the flask or rips it apart. Air pressure is what effects the egg’s ability to squeeze inside the bottle. When the egg is first placed on top of the flask, the pressure inside and outside the flask are the same. The amount of kinetic energy bouncing off the glass and the egg caused the pressure on the outside of the flask to be greater than the inside.
Demo #2:
Includes 200g weights and a syringe that had a clamp attached to the end to prevent more air from getting inside the
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“A Belle jar is a laboratory equipment used for creating a vacuum. It is so named as its shape is similar to that of a Belle. A Belle jar is placed on a base which is vented to a hose fitting that can be connected via a hose to a vacuum pump.” Both the inside and outside of the Belle jar had the same amount of pressure. Placing a slightly deflated balloon inside the jar and turning on the vacuum, it could be seen that the balloon began to inflate more and more. When the balloon was placed inside the jar before the vacuum was turned on, the air within it stayed the same. When the vacuum was turned on and decreased the amount of pressure inside the jar, the pressure inside the balloon increased, causing the particles to move faster and expands the
8. Put the closed flask into a water bath at room temperature in a 1 L beaker. Ensure that the entire flask is covered. If the flask begins to float, clamp it down. Put the temperature probe in the water bath. Using a pipet, add some boiling water from the hot plate to the water bath until the temperature of the water bath increases by 3 °C. Use the temperature probe to stir the water bath. Once pressure and temperature measurements stop changing, keep the data. Record the air pressure and vapor pressure for this temperature.
The pain that was felt on the body was created by all of the literal things that the soldiers carried. The most important of these physical objects were the numerous weapons, explosives and ammunition cartages that had to be carried at all times. Among the necessities or near-necessities were P-38 can openers, pocket knives, heat tabs.and two or three canteens of water. Together, these items weighed between 12 and 18 pounds. They all carried steel helmets that weighed 5 pounds.
The egg breaks when it is dropped. The eggshell is shattered. The yolk is scramble a little bit.
My partner for this egg challenge was Chyna Nunnery. Before building our egg, we searched the internet and found a steady and good idea for our egg. We started making the egg dropper that Tuesday and finished it on Wednesday. It was not challenging at all, you just had to know what you were going to do, at first I was not sure about it but after doing it my whole mindset changed. We used straws to make a straw box and it was very colorful, but also, we cut holes in our box so that our teacher could see the egg.
Check if there are any leaks especially around the stopcock, the valve at the bottom of the buret. When it comes to calibration, it is calibrated by transferring water into an Erlenmeyer flask and weighing it using an analytical balance. This is done for two (2) trials, each with varying amounts of water. Erlenmeyer’s mass is pre-recorded before transferring water from the buret. The volume delivered by the buret is considered the apparent, which means evident, volume. Before starting another set, the flask should be clean and dry to avoid any error. The water inside the flask will add the volume to be transferred thus making the mass of water higher than what it should really be. The mass of water obtained thru weighing by difference would then be multiplied to the buoyancy of water at the recorded temperature which will then be the corrected mass of the water. The corrected mass of the water is then divided by the density of the water, at the same temperature, and will be considered as the true mass. Correction value can be obtained by solving for the difference between the true volume and the apparent volume. Some of the correction value computed are negative and it only means that there is an error that occurred. One of the possible errors in most volumetric glassware’s is reading the wrong volume. Volume must be read based on the lower meniscus at eye
Hepel explains the process of explaining atmospheric pressure by starting from the beginning with Galileo’s interest in the limitations of a simple suction pump. Galileo’s observation was that a simple suction pump, which draws water form a well by means of a piston that can be raised in the pump barrel, will lift water no higher than about 34 feet above the surface of the well. After Galileo’s death, his pupil Torricelli pursued this dilemma. Torricelli argued that the earth is surrounded by a sea of air that exerts pressure on the surface below, and that this pressure upon the surface of the well forces water up the pump barrel when the piston is raised. The maximum length of 34 feet for the water column in the barrel thus reflects simply the total pressure of the atmosphere upon the surface o...
A hot plate is acquired and plugged in and if left to warm up. Fill two beakers with 0.075kg of water and record the temperature using a thermometer and record it. Place one of the beakers onto the hot plate and drop one of the metal objects in. Wait for the water to boil and wait two minutes. Take the object out of the water and drop it into the other beaker. Take the temperature of the beaker and record the rise in temperature.
The best way to measure gasses is by creating a closed system for an experiment
The Merriam-Webster Online Dictionary defines the word "weight" as "a mass or quantity of something taken up and carried, conveyed, or transported." Tim O'Brien's war story The Things They Carried, published in 1990, explores the theme of weight and its importance to men at war in considerable depth. The opening chapter of this book, which was originally written as a short story, is comprised of a collection of lists. O'Brien details for his reader both the physical objects, such as cigarettes, C rations, and packets of Kool-Aid, and the more intangible things, such as fear and silent awe, that weigh these soldiers down. With the amount of space that the author gives to enumerating the weight of these objects, one might assume that these objects are what are really important to these soldiers, but in reality it is the incalculable weight of their spiritual burdens that truly weigh them down.
How does the air pressure inside a ball influence the bounce height/vertical motion of that ball?
to be forced up the dip tube by the gas pressure in the can. The nozzle is
The purpose of this experiment was to make an object buoyant by adding a sufficient amount of extra volume to displace the water necessary.
The experiment validated the relationship between pressure and volume, thus proves Boyle’s law. The universal gas constant that was obtained was lower than the theoretical value, which could have been attributed to errors in the experiment.
Process ab: The vapour refrigerant entering the compressor is compressed to high pressure and temperature in an isentropic manner.