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What two reactants are necessary in order for a hydrocarbon combustion reaction to take place?
Hydrocarbon and fuel
What must link up with this fuel to produce energy?
Oxygen must combine with the fuel in a process known as combustion in order to produce energy. During combustion, the fuel is oxidized and releases energy in the form of heat and light.
What are two chemical reactions that require energy in order to occur?
Photosynthesis: The reaction where carbon dioxide and water are converted into glucose and oxygen by plants using sunlight. Endothermic reactions: Reactions that involve the absorption of heat energy from the surroundings, such as the decomposition of calcium carbonate to form calcium oxide and carbon dioxide.
What are pseudo-first order reactions and do they differ from first order reactions?
Pseudo-first order reactions appear to be first order but depend on the concentration of a reactant that is present in excess, leading to a rate equation that behaves as first order. This can occur when the concentration of another reactant remains relatively constant throughout the reaction. This differs from first order reactions, where the rate is directly proportional to the concentration of a single reactant.
What is an another name for exothermic and for endothermic reactions?
it is a Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0). In the lab, exothermic reactions produce heat or may even be explosive. There are other chemical reactions that must absorb energy in order to proceed. These are endothermic reactions. Endothermic reactions cannot occur spontaneously. Work must be done in order to get these reactions to occur. When endothermic reactions absorb energy, a temperature drop is measured during the reaction. Endothermic reactions are characterized by positive heat flow (into the reaction) and an increase in enthalpy (+ΔH).
What two reactants are necessary in order for a hydrocarbon combustion reaction to take place?
Hydrocarbon and fuel
What quantities are conserved when balancing a nuclear reaction?
In order for a nuclear reaction to be balanced, there are quantities that must be conserved. The quantities are the atomic numbers and mass numbers of the particles involved in the reaction.
What must link up with this fuel to produce energy?
Oxygen must combine with the fuel in a process known as combustion in order to produce energy. During combustion, the fuel is oxidized and releases energy in the form of heat and light.
During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber?
This is called the compression stage. During the four stroke sycle (Otto cycle) the four stokes are induction, compression, power and exhaust. Each piston does this in a set order to even out the stresses caused, and thereby smooth the output. For example the firing order (i.e. power stroke) on a four cylinder engine could be 1,3,4 and 2 or 1,2,4 and 3.
What is a combustion analyzer used for?
A combustion analyser is used for combustion analysis, which is used in biology and chemistry. It is used to analyse the components of an item in order to find the composition of materials.
What are two chemical reactions that require energy in order to occur?
Photosynthesis: The reaction where carbon dioxide and water are converted into glucose and oxygen by plants using sunlight. Endothermic reactions: Reactions that involve the absorption of heat energy from the surroundings, such as the decomposition of calcium carbonate to form calcium oxide and carbon dioxide.
Why a reaction needs to take place at equilibrium?
Many chemical reactions, like combustion , go to completion and not to equilibrium. It is normally desirable to give a chemical reaction time to reach equilibrium in order you get the maximum yield of one or more products.
Is there a picture of the firing order for a 1995 Camry 4 cylinder engine?
There is a picture of the firing order of a 1995 Toyota Camry 4 cylinder engine in the vehicle's service manual. The firing order determines when each cylinder is ignited during the combustion cycle.
What does conserved mean?
Conserved means to preserve or protect something, such as resources, energy, or natural habitats, in order to prevent depletion or destruction. Conservation efforts aim to maintain the integrity and balance of ecosystems and resources for future generations.
Do endergonic reactions absorb more energy than they release?
Yes, endergonic reactions absorb more energy than they release. These reactions require an input of energy in order to proceed, and the energy absorbed is greater than the energy released during the reaction.
What is knocking Explain mechanism of knocking?
in order for an engine to operate satisfactorily combustion of the air fuel mixture must be smooth and normal combustion .normal combustion defined as all combustion process which is initiated solely by atimed spark and in which the flame front moves completely a cross the combustion in a uniform at normal velocity.
What are pseudo-first order reactions and do they differ from first order reactions?
Pseudo-first order reactions appear to be first order but depend on the concentration of a reactant that is present in excess, leading to a rate equation that behaves as first order. This can occur when the concentration of another reactant remains relatively constant throughout the reaction. This differs from first order reactions, where the rate is directly proportional to the concentration of a single reactant.
