What is the difference between fuel-injected gasoline engines and diesel engines?

Q: Calculate ΔG° (kJ/mol) for a reaction whose equilibrium constant is 1.9 x 106 at 298 K. Report your…

A: Write the given values of the problem- Equilibrium constant(K) K=1.9×106 Temperature (T) T=298 K

Q: Starting from the initial system, a combination reaction occurs at Starting from the initial system,…

A: Consider the order given with numbers assigned to each system as Initial system, as stated in the…

Q: Write down the Arrhenius equation. Derive an expression for temperature variations. At a temperature…

A:

Q: How many moles of hydrogen molecules are needed to react with one mole of oxygen molecules?

A: Given: Moles of oxygen (no) = 1 mole.

Q: Do nuclear power plants use fission, fusion, or both?

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Q: if action is of 10 N, then the reaction will be of O 10 N in the same direction 20 N in the same…

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Q: Chemical reactions that require a net input of energy are: * incomplete endothermic exothermic…

A: a) We have to determine the type of reaction for a given reaction. b) to determine the unit of…

Q: Why should we switch all of our fossil fuel power plants to nuclear?

A: Nowadays our main concern is climate change so we switch from fossil fuel to nuclear because nuclear…

Q: A 60.0 g of CaC2 reacts with water to produce C2H2 and 81.2 g of Ca(OH)2. The reaction between these…

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Q: For an exothermic reaction * O both AH and AU are negative O only enthalpy change (AH)is negative O…

A: SOLUTION: Through the exothermic reactions energy is released in the form of light energy or heat…

Q: The KP of a reaction depends on temperature only. It is independent of the pressure of the…

A: The equilibrium constant KP of a reaction depends only on the temperature of the reacting system. It…

Q: -The energy from a nuclear reaction is usually in the form of, electrical heat chemical mechanical…

A: Required : Form of energy from a nuclear reaction.

Q: adioactive substance has a half life of 30 minutes. How much of a sample of this substance will not…

A: Given, No = 100%= 1 T= 30min t= 2.5 hours = 150 min We know that, N= No (1/2)t/T

Q: Why are models in science used to respresent complex processes

A: Models can helpful in visualising , picture in mind, something that is difficult to see or…

Q: What is the concentration of a solution obtained by diluting 30 mL of a 45% w/v solution to a final…

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Q: Consider the following reaction at equilibrium. What effect will decreasing the volume of the…

A: Given data: Chemical reaction: 2H2Sg+3O2g⇌2H2Og+2SO2g

Q: The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this…

A: Solution: Givwn that The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the…

Q: If the Helmholtz energy of a reaction is closed system is positive (at constant Volume and…

A: Helmholtz free energy: - Helmholtz free energy is a thermodynamic potential that uses to calculate…

Q: How many oxygen atoms are in 32 moles of CO2?

A: Each mole of CO2 contains 2 moles of oxygen. 1 mole of any substance contains 6.023×1023 units of…

Q: Using the information below, compute the actual energy consumed by the microwave, in kJ, for this…

A: Given: The power of microwave is 801 J/s. The time of operation is 5 min. The power used by hot…

Q: Why do you think blacksmiths must have such hot fires to forge steel? Because metals are brittle and…

A: Steel is mainly made up of Iron and Carbon, and little percentage of other elements to make…

Q: What is wrong with this refrigerator whose diagram is shown below?

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Q: Gold occurs in seawater at an average concentration of 1.1102 ppb. How many liters of seawater…

A: Given- Average concentration of the gold in seawater =1.1×10-2 ppb Density of seawater =1.025 g/mL 1…

Q: When energy from battery was added to water, were the gases produced by this made of the same…

A: When energy from  battery was added to water  then observations :    On one side, at the positive…

Q: Write the equilibrium constant expression for each of the following reactions: a. HC(g) Ox(g) Cl(g)…

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Q: What is the mass of 3.0 moles of hydrogen molecules, H2? (atomic mass of H = 1 u)

A: Molar mass of H2 is 2.0 gm/mol. We have to find the molar mass for 3 mol?

Q: write the balanced chemical equation for P+O2=P2O5

A: 2P+52O2 = P2 O5…

Q: describe in detail why and in what situation you use mgh=1/2kx^2, and the question (why it is…

A: mgh = (1/2) kx2 where m is the mass g is the acceleration due to gravity h is the maximum height k…

Q: Which is NOT an element that must be present for a fire to occur? a. heat c. hydrogen b. fuel d.…

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Q: How can an understanding of the limiting reactant, excess reactant and percent yield help…

A: In manufacturing the compositions of products matters in achieve good quality products. i.e…

Q: Compare between Electron Capture and Internal Conversion Processes

A: We need to compare between Electron capture and the Internal conversion process.

Q: Using values from Table, how many DNA molecules could be broken by the energy carried by a single…

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Q: lf the weight of h0m0genous bar AB is 5kN, F is 45kN, and bar AB is in equilibrium. Calculate the…

A: This question is based on equilibrium of beam and rotational motion.

Q: Why do the electron-transfer reactions of the cytochromes differ in standard reduction potential,…

A: The electron-transfer reactions of the cytochromes differ in standard reduction potential, even…

Q: You are designing a new product that requires the use of a stable nonreactive gas. Which gas would…

A: SOlution: TO suggest the gas, for a new product that requires the use of a stable nonreactive gas.

Q: What is the effect of decrease of pressure on the fusion and boiling point of CO2.

A: The phase diagram of carbon dioxide is,

Q: 10g of K2SO4 is dissolved into 1000g of water. The freezing point of the solution is -.0.29 degrees…

A: Van't Hoff factor (i) is the measure of degrees of dissociation/association of a compound. i =…

Q: process that releases heat energy to the surroundings is an __________ reaction, while a pro- cess…

A: 1st blank. Exothermic Reaction  2nd blank Endothermic Reaction . When in an reaction heat is…

Q: In co-generation which products in a combustion reaction do we use as input energy for another…

A: Co-generation is the process of combined source of heat and power, it is the process of production…

Q: The conversion of cyclopropane in the gas phase is a first-order reaction with a rate constant of…

A: The first order reaction is given by  where, Ro is the initial activity, R is the final activity, t…

Q: Give a reason why soda drinks should be in plastic bottles rather than in aluminum cans?

A: A typical soda drink may contain acids like citric acid which can react with metallic containers and…

Q: Gasoline burning in your car engine is an example of a physical change and the product and reactants…

A: