Category: Physics

Why does boiling point decrease with increase in branching? Branching decreases the boiling point As the length of carbon chain increases, the surface area of the compound will also increase. Van der Waals dispersion force is proportional to the surface area. Branching in molecules decreases the surface area thereby decreasing the attractive force between individual […]

What is the balanced equation for FeCl3 NaOH Fe OH 3? FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl According to the stoichiometry of the reaction, 1 mol of FeCl3 reacts with 3 mol of NaOH and produce 1 mol of Fe(OH)3 and 3 mol of NaCl. What happens when you mix FeCl3 and NaOH? FeCl3 […]

What do you mean by positive rake angle and negative rake angle explain their merits and demerits? Rake angle of the cutting tool is defined as the angle of orientation of tool’s rake surface from the reference plane (πR) and measured on some other plane. A positive rake reduces the wedge angle and thus shearing […]

What is the overall charge when an atom has more protons than electrons? An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom. If the atom has more electrons than protons, it […]

What each variable is plotted along? Each variable is plotted along an axis. A line graph has a vertical axis and a horizontal axis. For example, if you wanted to graph the height of a ball after you have thrown it, you would put time along the horizontal, or x-axis, and height along the vertical, […]

How many airbags is safe? Technically, there’s no upper limit to the number of airbags you could place in a vehicle. A car could be designed with every interior surface ready to inflate during impact; however, that vehicle would be very expensive and very heavy. Cost and weight — those are the two main limits […]

What are the vowel sounds? A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (length). What are the 20 vowel sounds in English […]

Is it bad to move your car in neutral? Though it will not harm your transmission to shift into Neutral while your vehicle is in motion, the additional wear on your brakes by leaving the transmission in Drive will be negligible over the life of the brake pads. It is that minor. NEVER, EVER go […]

How long will a 100Ah battery run an appliance that requires 400w? It really depends on how many amps the appliance will use per hour. A battery with a 100ah rating assumes the usage will be 5 amps per hour, which means the battery will last 20 hours. Almost all deep cycle batteries use the […]

Which is the only condition under which a concave mirror? The only condition under which a concave mirror forms a virtual and upright image is when an object is placed between the center of curvature and the focal point on the principal axis. Which type of image is formed by convex mirror? Image formed by […]