What is the relation between surface tension and surface energy? The attractive force of the molecules present at the surface of a liquid towards each other is called the surface tension of that liquid. Surface energy is the equivalent attractive force present between the molecules at the surface of a solid substance. What are the […]
How is pressure maintained in a reactor?
How is pressure maintained in a reactor? As shown above, mass flow meters are often used to control the input of various gases (and sometimes liquids) into the heated reactor containing the catalyst sample. A back pressure regulator is typically used on the exit of the reactor to maintain stable pressure control for the catalysis […]
What are the different columns called?
What are the different columns called? In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families. What three families are found in the center of the periodic table? The three families that are found in the center portion of the […]
How long does it take to walk a mile?
Do Low flow shower heads save money?
Do Low flow shower heads save money? Low flow showerheads reduce both water and energy usage, since reducing the amount of water used by the shower will also reduce the amount of energy used to heat it. In doing so, low flow showerheads also reduce the amount of money spent on utilities. Are Low flow […]
How do you calculate waves?
How do you calculate waves? Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed […]
Which is costly brass or bronze?
Which is costly brass or bronze? While all three contain copper, the percentage is far lower in Brass and Bronze than in pure copper as alloying elements are mixed in. This reduces the cost of brass and bronze. Bronze is usually more expensive than brass, partly due to the processes required to manufacture bronze. How […]
What is wet lab skills?
What is wet lab skills? A wet lab is one where drugs, chemicals, and other types of biological matter can be analyzed and tested by using various liquids. On the other hand, a dry lab environment focuses more on applied or computational mathematical analyses via the creation of computer-generated models or simulations. What are some […]
Does an MRI show broken bones?
Does an MRI show broken bones? MRI is sensitive to changes in cartilage and bone structure resulting from injury, disease, or aging. It can detect herniated discs, pinched nerves, spinal tumors, spinal cord compression, and fractures. What can an MRI see that a CT scan Cannot? Where MRI really excels is showing certain diseases that […]
What are four symptoms of cystic fibrosis?
What are four symptoms of cystic fibrosis? Symptoms of CF Very salty-tasting skin. Persistent coughing, at times with phlegm. Frequent lung infections including pneumonia or bronchitis. Wheezing or shortness of breath. Poor growth or weight gain in spite of a good appetite. Frequent greasy, bulky stools or difficulty with bowel movements. Male infertility. What is […]