What is the relation between CP CV and R? where cp is the specific heat coefficient at constant pressure, cv is the the specific heat coefficient at constant volume, gamma is the ratio of specific heats, and R is the gas constant from the equation of state. Is gamma CP a CV? gamma = cp […]
In what way are the chemical equations useful to us?
In what way are the chemical equations useful to us? ↵Chemical equation gives us the complete information about the reaction taking place. It tells the number of atoms of each element participating in the reaction. It tells the neccerssary requirements such as temprature, catalyst, etc. It also tells us the state of the elements in […]
How many atoms are in FEOH?
How much force do you need to apply in order to stop the box?
Which component of velocity of a projectile is constant?
Which component of velocity of a projectile is constant? The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is […]
How accurate is a spectrophotometer?
How accurate is a spectrophotometer? The minimum is not sharp and good results can be expected in a transmittance range from 0.2 to 0.6 or an absorbance range from 0.7 to 0.2. An inspection of the graph below indicates that transmittance values of 0.1 and 0.8 are the outside limits between which one can expect […]
What describes the movement of wind?
What describes the movement of wind? Movement of air caused by temperature or pressure differences is wind. Consequently, air blows anticlockwise around a low pressure centre (depression) and clockwise around a high pressure centre (anticyclone) in the northern hemisphere (see Figure 3.1). Which set of conditions describes a low pressure system? Explanation: A low pressure […]
What type of system is best to observe conservation of mass?
What type of system is best to observe conservation of mass? Answer. The law of conservation of mass can be best observed in any type of chemical reaction that is a closed system. What is the difference between an open and a closed system? There are three types of systems in thermodynamics: open, closed, and […]
What is the relationship between light and photography?
What is the relationship between light and photography? The relationship between the light, the subject and the viewer is at the heart of Lighting. The photographic subject can transmit, absorb or reflect photons (light particles). What is light and why it is important to photography? Lighting is a key factor in creating a successful image. […]
Can I scrape plaque off my teeth?
Can I scrape plaque off my teeth? Brushing and flossing daily is really important because plaque quickly becomes tartar, and once it’s tartar, you can’t remove it on your own, or at least, you shouldn’t. Tartar build-up needs to be scraped off, and trying to do this at home can cause you to scratch the […]