Endothermic

distinct pH. The same base of NaOH will be used in all three experiments. Introduction: Chemical reactions always have energy change. Energy in the form of heat, if liberated is known as exothermic and if absorbed in the reaction is known as endothermic. When a reaction carried out under standard condition at a of temperature 298K and 1 atm of pressure and 1 mole of water is formed it is called the starndard enthalpy of neutralisation (ΔHno). The heat (Q) released during a reaction is…

of the products is expected(Akpa et al. 2010). When the flow rate of gas oil is increased, there is an increase in the heat inflow into the reactor, rate of cracking reactions are high, feed also spends less time in the reactor and hence less endothermic cracking reactions take place. This resulted in a slight increase of the conversion of gas oil from 73% - 74% (Fig 4.5). It was observed that as the flow rate of gas oil to the riser increases from 34Kg/s to 63Kg/s the gasoline…

Thermoregulation is the process of regulating the internal body temperature of animals within a certain range. Endotherms, such as mammals and birds, thermoregulate internally by generating heat from metabolic processes and are able to keep their body temperature high and relatively constant, adapting to the environment to maintain homeostasis. This type of thermoregulation requires a high metabolic rate, that enables organisms to be more physically active without having to rely on the…

Introduction: In this lab, seven test tubes containing solutions in equilibrium had different stresses added to them to examine the balance in each example. The purpose of the experiment was to indentify the details of shifting in equilibrium reactions and determine how the adding of a stress can affect a reaction. A chemical reaction that is in equilibrium is reversible, where a reactants can create products and products can go back to products. Equilibrium is reached when the rate of a…

The FTIR spectrum of PVA/CS nanofiber was shown in Fig. 1(a). The band at 3255.32 cm−1 was corresponded to -OH stretching and the peaks at 1025.6 and 1450.04 cm−1 for the -C-O band. The peaks at 3445.32 cm-1, 2965 cm-1, 1640.01cm-1, 1598.7 cm-1, and 1361 cm-1 are due to amine NH symmetric vibration, C-H vibration, deformation vibration of the absorbed water molecules, stretching vibration of amino group of chitosan and vibration of C-H, respectively. The peaks at 890.1 and 1100 cm-1 was…

filtered out after equilibrium and tested for Cu (II) ions concentration using the Atomic absorption spectrometer. Data analysis was carried out using pseudo-second-order model and Arrhenius and Eyring equations. The adsorption process was efficient, endothermic, and followed the Langmuir isotherm model with TFS-CE having maximum adsorption capacity of 64.1mg.g-1 at temperature of 300K and pH of…

Proximate analysis The analysis result of proximate composition of dried laver (P. species) has presented in Table 1. In our study, the crude protein of commercial dried laver was found to be (42.99 ± 0.051g/100g DW) and the moisture content was (9.40 ± 0.056 g/100g DW). The ash content was found (10.30 ± 0.033 g/100g DW). Laver, in this study, contained a very small amount of crude lipids (0.49 ± 0.04 g/100g DW). The total dietary fibre of dried laver was (31.63 ±0.032 g/100g DW). The total and…

This substantial distinction prompts to the loss of an electron from the less electronegative particle and the pickup of that electron by the more electronegative molecule, bringing about two particles. These oppositely charged particles feel a fascination in each other, and this electrostatic fascination constitutes an ionic bond. Ionic holding happens between a nonmetal, which goes about as an electron acceptor, and a metal, which goes about as an electron contributor. Metals have few valence…

The hypoxic and cold environment at high altitudes requires that endothermic animals sustain high rates of oxygen (O2) consumption for both locomotion and thermogenesis while facing a diminished O2 supply. Recent evidence suggests that genes in the hypoxia inducible factor (HIF) pathway have been targeted by natural selection…

Introduction Acetone (dimethyl ketone, 2-propane, CH3COCH3), formulation weight 58,079, isthe simplest and the most important of the ketones. It is a colourless, mobile, flammableliquid with a mildly pungent and somewhat aromatic odour. It is miscible in all proportionswith water and with organic solvents such as ether, methanol, ethyl alcohol, and esters.Acetone is used as a solvent for cellulose acetate and nitrocellulose, as a carrier for acetyleneand as a raw material for the chemical…