Laws of thermodynamics

Winterize Your Home’s Plumbing Before It’s Too Late Winter can be a problematic time for homeowners. You run the risk of having pipes in your home that freeze, causing the water inside to expand and the pipe to burst. Not only do you have a plumbing repair that needs to be done as a result, but you will have water damage in your home. The same thing can happen outside of your home as well when you don’t take preventative steps before winter comes. Thankfully, winterizing your home’s plumbing is…

In addition, higher SGR of V. parahaemolyticus was observed as the temperature increases. The MPD values of V. parahaemolyticus varies from the lowest 7.00 to the highest 8.91, regardless of the type of V. parahaemolyticus strain at the 3 different temperatures. The differences in LT values were increased as the temperature was increased. At 20 °C, the shortest LT was observed with the (tlh+) strain, followed by (tdh+/trh+), the mixture, the (tdh+) and the (trh+). At 25°C the strains likely kept…

In the half-life of barium-137m graph, the results tended to lose activity as time progresses, indicating that barium-137m was undergoing a decay process. Initially, barium-137m had an activity of 4264 CPM (5 seconds in). After approximately five minutes, the activity had dropped to 1092 CPM, and after 10 minutes, the activity had dropped to 318 CPM. The radical changes between 4264 CPM and 1092 CPM compared to the changes from 1092 CPM to 318 CPM indicated exponentially decreasing activity.…

nuclear energy for energy from some kind of nuclear fusion, thermal and heat energy for energy that comes from heat the hotter the item the more energy, and mechanical energy for energy associated with motion and position of an item. There was also the law of conservation of energy, it states that the total energy of an isolated system is given, frame of reference remains constant. This had to be stated because it was our goal to find out what…

Endothermic or Exothermic? The energy changes lab was an interesting lab in which the class compared two chemical reactions, the solute baking soda and the solvent vinegar, and the solvent baking soda solution with the solute of calcium chloride to see whether the changes were endothermic or exothermic reactions. I concluded that vinegar and baking soda was the endothermic reaction and baking soda solution and calcium chloride was the exothermic reaction. I knew this because in the vinegar and…

If you have a well on your property, make sure that you follow these three tips to ensure that your well pump system makes it through the winter without an incidents. #1 Protect Your Pump With A Pump House The most basic way you can protect your well pump system is by ensure that it is covered with a pump house. If you do not have a pump house around your well, contact a local contractor and see about having one installed this week. It should only take a skilled contractor a few hours to…

The estimated amount of time it took for the reactions that involved 2- chlorobutane, 2 – bromobutane, or 2 – chloro – 2 – methylpropane and 2 - bromobutane to form a precipitate could not be determined because no precipitate was formed. It makes sense that no precipitate was from because there was a lot of steric hindrance. The estimated amount of time it took for the reaction that involved 1 – chlorobutane could not be determined because at first glance it looked as if no precipitate formed.…

In this lab experiment, we will be using an unknown volatile liquid in order to understand the direct relationship between the molecular weight of a gas and its vapor density, which will help us determine the molecular weight of the unknown. The necessary tools that are essential in this experiment include: a balance, watch glass, two pieces of foil (2.5x2.5 inches & 3x3 inches), boiling chips, a ring stand, a thermometer, a bunsen burner, and an 800mL beaker. During this experiment, we have to…

The purpose of our investigation is to find the most efficient way to recycle cans( make them self- implode) to help the Oakland Recycling Center find the best process for them to recycle aluminum. This problem is important because it is important for us to start recycling cans in order for global warming to decrease in the world. Not recycling cans means that new aluminum cans will have to be made, and to make new aluminum cans people have to dig into the earth’s crust which wastes a lot of…

This photo is a picture of my lofted bed next to a large two-paned window. This is just one of two windows in my dorm room in De Smet Hall. The concept that I will discuss regarding my photo is thermodynamics and transfer of heat. Specifically, I will be discussing conduction from the temperature outside of De smet and the temperature of my dorm room. The material that the energy will transfer through is the two large two-paned windows that are on each wall. I will complete example calculations…