What is the effusion rate of nitrogen? 79 mL/s. What is the ratio of the rate of effusion of N2 respect to O2? 1.07 times How is rate of effusion calculated? The rate of effusion of a gas is inversely proportional to the square root of the molecular weight of the gas. The lighter a […]

How does vision work to send an image to the brain? When focused light is projected onto the retina, it stimulates the rods and cones. The retina then sends nerve signals are sent through the back of the eye to the optic nerve. The optic nerve carries these signals to the brain, which interprets them […]

What is Trimyristin used for? Presently, the main use of trimyristin is for research and development as a laboratory reagent. Why is diethyl ether a suitable solvent for the extraction of Trimyristin? Thus using a relatively nonpolar solvent, trimyristin can be easily extracted by the concept of “like dissolves like”. Diethyl ether is a relatively […]

Why is there more saltwater than freshwater on Earth? In the beginning, the primeval seas were probably only slightly salty. But over time, as rain fell to the Earth and ran over the land, breaking up rocks and transporting their minerals to the ocean, the ocean has become saltier. Rain replenishes freshwater in rivers and […]

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What type of enzyme is pyruvate dehydrogenase? Carbohydrate Oxidation: Oxidative Glucose Disposal The pyruvate dehydrogenase (PDH) enzyme is part of the multienzyme PDC, which catalyzes the physiologically irreversible decarboxylation of pyruvate to acetyl-CoA and is often referred to as a ‘gatekeeper’ in the oxidation of carbohydrate (Figure 3). Which of the following enzymes make up […]

What does upper flammable limit mean? The highest concentration of a vapor or gas (the highest percentage of the substance in air) that will produce a flash of fire when an ignition source (heat, arc, or flame) is present. See also Lower Flammable Limit. At concentrations higher than the UFL, the mixture is too rich […]

Are karyotypes arranged by size? In a human karyotype, autosomes or “body chromosomes” (all of the non–sex chromosomes) are generally organized in approximate order of size from largest (chromosome 1) to smallest (chromosome 22). The X and Y chromosomes are not autosomes. How are chromosomes arranged in a human karyotype? In a human karyotype, autosomes […]

What is Work energy and power? Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. Power is defined as work done per unit time. What is difference between work power and energy? Power is defined as the amount of energy transferred […]

Is a coiled spring potential energy? Elastic potential energy is energy stored as a result of applying a force to deform an elastic object. The deformation could involve compressing, stretching or twisting the object. Many objects are designed specifically to store elastic potential energy, for example: The coil spring of a wind-up clock. What type […]