Category: Physics

What is the principle of calorimetry? The principle of calorimetry indicates the law of conservation energy, i.e. the total heat lost by the hot body is equal to the total heat gained by the cold body. What is the calorimetry method? Calorimetry method Measure a volume of an acid and place into a polystyrene cup […]

What is the coldest month in Flagstaff AZ? January 4 What month does it snow in Flagstaff AZ? Flagstaff experiences intense sunny days as well as an average of 100 inches of snow during the winter months. Snow tends to come in late November and may last on the San Francisco Peaks until June. Is […]

Is air lighter than water? 5 Answers. Air is lighter because there are fewer molecules per unit volume compared with a unit volume of liquid water. A mole of water is 18 grams, so a liter of water contains about 55 moles (1000 grams). A mole of air at standard temperature and pressure, however, occupies […]

What is the angle of incidence for minimum deviation? Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angl… An equilateral prism is made of material of refractive index ? 3. What is angle of minimum deviation in prism? The smallest angle through which light is […]

When sugar is dissolved in water the resulting solution is classified as a? A mixture in which a substance has fully dissolved in water is called a solution and the substance is said to be soluble. An example of this type of mixture is sugar in water. Here the sugar dissolves fully to give a […]

How do you balance charges? Balance charge. Add e- (electrons) to one side of each half-reaction to balance charge. You may need to multiply the electrons by the two half-reactions to get the charge to balance out. What is redox reaction explain with an example? Every chemical reaction in which the oxidation number of a […]

What is the intensity of a 40 dB sound? The Threshold of Hearing and the Decibel Scale The faintest sound that the typical human ear can detect has an intensity of 1*10-12 W/m2. How many times louder is 20 dB? For the decibel scale, that number is 10. A 20 dB sound is 10 times […]

What are the general types of intermolecular forces? The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds. What are the properties of matter influenced by intermolecular forces? As the intermolecular attraction increases, • The vapor pressure […]

How is aspartate Transcarbamoylase regulated? Regulation of De Novo Pyrimidine Biosynthesis In prokaryotic cells aspartate transcarbamoylase, an allosteric protein, is inhibited by the end product CTP and activated by ATP. Why is it important to regulate ATCase? The cell must precisely regulate the amount of CTP in the cell because making it can be energetically […]

How do you calculate the pressure of hydrogen gas collected over water? To obtain the gas pressure, subtract the vapor pressure of water from the total pressure. EXAMPLE: A 325 mL sample of gas is collected over water at 26oC and 742 mm Hg pressure. Calculate the volume of the dry gas at STP. The […]