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Answer: Sometimes, when a chemical reaction takes place, it proceeds for a period of time and then seems to stop before all the reactants are consumed. Chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. At equilibrium, with both the forward and reverse reactions taking place at the same rate but the concentration of every species no longer changes. In many chemical reactions equilibrium occurs at the point when essentially all reactants are converted to products, but for other reactions, equilibrium occurs when only part of the reactants is converted into products.
The equilibrium can be affected by a change in temperature in concentration of a reactant or product. The state of equilibrium is especially important in solutions, and there are much vital equilibrium in the chemistry.
Answer: Kinetic energy is the energy of an object in motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. The common symbol for kinetic energy is KE, Kk or T and the SI unit is joule(J).
Ek = ½mv2
Ek = Et+Er
For example, Calculate the kinetic energy of an 80 kg mass (about 180 lbs) traveling at 18 metres per second (about 40 mph, or 65 km/h) asThe Kinetic energy expression can be derived from the definition for work and from kinematic relationships. W net = K. E. f − K.E. o , where K. E. f is the final kinetic energy and K. E. o is the original kinetic energy.
Answer: Inorganic chemistry deals with molecules lacking carbon. These are typically compounds without carbon atoms. H2O, O2, and NaCl are examples of inorganic compounds.
There are many compounds which contain carbon then also those compounds are considered as inorganic compound, such as Carbon monoxide, carbon dioxide, Cyanides, carbonates cyanates, carbides, and thiocyanates. Minerals are strictly inorganic compound.Example of inorganic compound:
Ammonium sulfate – (NH4)2SO4, Carbon tetraiodide – CI4, Carbonic acid – H2CO3, Carbonyl fluoride – COF2, Carbonyl sulfide – COS, Carboplatin – C6H12N2O4Pt, Barium azide – Ba(N3)2, e.t.c.Answer: Atom: The smallest quantity of an element that still possesses the characteristics of that element is an atom.
Molecules: Atoms chemically bond together to form molecules, and the composition of a molecule is given by its chemical formula (O 2, H 2O, C 6H 12O 6). When the atoms in a molecule are different, the molecule is a compound (H 2O and C 6H 12O 6, but not O 2).
Bond: The number and arrangement of electrons of an atom determine the kinds of chemical bonds that it forms and how it reacts with other atoms to form molecules. There are three kinds of chemical bonds:
• Ionic bonds
• Covent bond
• Hydrogen bond.Answer: Study of mathematical structures that are fundamentally discrete rather than continuous is called as discrete mathematics. The branch of mathematics dealing with countable sets is the discrete mathematics. It deals with the set of objects which can be finite or infinite. The term finite mathematics is sometimes applied to parts of the field of discrete mathematics that deals with finite sets.
Answer: Function overloading: The capability with which C++ enables several functions of the same name to be defined, as long as these functions have different sets of parameters is called function overloading. The C++ compiler selects the proper function by examining the types, number and order of the arguments in the cal when the overloaded function is called. This is used for creating several functions of the same name that perform similar tasks but on different data types.
Operator overloading: It allows the developer to program using notation closer to the target domain and also allow the existing C++ operators to be redefined to work on objects of user-defined classes. Overloaded operators are syntactic sugar for equivalent function calls. It is generally defined by the language, the programmer, or both.
Answer: The government decides where to locate economic activities in a command economy. Prices to charge for goods, including agricultural goods and services are decided by the government. Economic decisions are often made to further the goals of the government. Production costs (how much it costs to make an item), are not reflected in the cost of the item.
Answer: Java Runtime Environment (JRE) is the implementation of JVM. It consists of JVM and java binaries and other classes to execute any program successfully. To execute any java program JRE should installed. JRE doesn’t contain any development tools like java compiler, debugger etc.
