Bernoulli's Theorem Apparatus Lab Report

In Figure 2, the lower meniscus lies below the 3 mL line and 4 minor gradations that signify 0.1 values. Estimating the uncertain digit to be 0.04 mL, the reading we record for this particular buret is 3.44 mL.

The measuring cylinder was then used to accurately measure out 20 mL of water, which was then poured into the test tube that would be used for the experiment. The test tube was then placed into the clamp, which was then adjusted in order to make sure that the test tube was grasped firmly and would not fall out.

6) The tape was used to measure gas accumulation in the balloon after 1minute. Measurement and qualitative observations were recorded.

2. Determine the room’s air temperature, and also measure the diameter of the glass tube. Record the data.

Poiseuille’s law states the volume in a tube is directly proportional to pressure difference between both ends of the tube and inversely related to the length. Poiseuille’s law was discovered by Jean Louis Marie Poiseuille in 1840 (Poiseuille’s). Jean Louis used his experiments to find the smooth, laminar flow in circular tubing (Jean-Louis). His findings can be described as the flow of blood through the body and bronchial smooth muscle.

I took the graduated cylinder and started filling it up with water until the bottom of the meniscus was to the the 100.0 mL mark with the assistance of a dropper pipet. I then took the 13 x 100 mm test tube and slowly poured the water from the graduated cylinder into the test tube until it was full to the top. I then poured the water in the test tube out into the sink and put the graduated cylinder on the counter so I can get an accurate measurement of the lower meniscus to record on my data table. I once again followed the same procedure again filling a second test tube with water from the graduated cylinder then setting it on a straight surface to get an accurate measure of the volume to

A sample of gas is trapped in a sealed container, which has a movable lid. Moving the lid up or down will change the volume inside the container. You will use an attached manometer to measure the pressure inside the container.

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

interrupted and so the number of rotations can be measured. The frequency of rotations depends on the flow of air so a flow signal can be generated.

1. First, 3.0015 g of salicylic acid were measured using an electronic balance. 2. The salicylic acid was then transferred into a 150 mL beaker.

Martin Wright developed the mechanical peak flow meter in 1959, it has been used to monitor serial lung function in asthmatics because it is inexpensive, compact, easy to use, and it provides an objective measure of lung function (Ayala et.al, 2014, p.84). Moreover, the peak flow meter has evolved since its creation almost 60 years ago, in terms of both size and precision. In addition, patients can be taught to use the peak flow meter and monitor their own lung function to determine when to use different medications as directed by an asthma action plan, which is constructed by the patient’s physician and or caregivers. A Peak flow meter is a portable

Gather the following lab equipment: Goggles, test tubes, 24 well plate, Gas assembly with copper and plastic tubing and a #00 stopper, short stem pipet, rubber stopper #00 with one hole and a pipet tip with plastic gas delivery tube, 2 small tables of AlkaSeltzer, 4mL Bromothymol blue .04%, 20 mL hydrochloric acid, 4-6 pieces of manganese metal, 4-6 pieces of mossy zinc, and 3 pipet bulbs.

Both the orifice and the Venturi meters produce a restriction in the flow and measure the pressure drop across the meter. The velocity of a fluid is expected to increase as the fluid flows from an open area, to a more constricted area. Assuming incompressible flow, a negligible height change, and steady state, Bernoulli’s equation can be simplified to show the correlation between the volumetric flow rate and the pressure drop. The equation for both meters is as follows:

Alternatively, it can also be explained by referring to the equation , where the k value is constant while the hydraulic gradient i defined by i = ΔH/L increases because the head difference ΔH is constant while the flow length L becomes shorter when it gets closer to the barrier wall.

the condition z1≠z2 is true if the two pressure taps are not horizontal (at different height).