Sound require a medium in order to transfer energy. does does not

Q: Transition State Ea Reaction Coordinate

A:

Q: Explain why lattice energy is a negative quantity.

A: When one mole of an ionic solid is converted into a gaseous substance then the amount of energy…

Q: (a) Which of the following cannot leave or enter a closed system:heat, work, or matter? (b) Which…

A: (a) A closed system is a type of system in which energy can be exchanged in the form of heat or work…

Q: Why is the amount of heat absorbed by the water not equal to the amount of heat produced by the…

A: Combustion is a exothermic chemical process in which in presence of atmospheric oxygen, molecules…

Q: The ultimate and most abundant natural source of energy is the __________.

A: Basic concept of energy of natural resources.

Q: Heating food in the microwave oven is mainly due to the vibration of the molecules of a. fats B.…

A: Given: Heating food in the microwave oven is mainly due to the vibration of the molecules.

Q: A student is investigating the energy released during the combustion of different alcohols. The…

A: Given: A student is investigating the energy released during the combustion of different alcohols.…

Q: For the equation H20 (g) --> H20 (1) answer the following questions: Q1) Is it endothermic or…

A: For the following reaction, H2O (g) →H2O (l) This reaction goes for transition of phase of water. 1.…

Q: When two nitrogen atoms combine to form a nitrogen (N2) molecule, the potential energy of the 2…

A: When two nitrogen atoms combine to form nitrogen molecule (N2).

Q: A man ate 0.50 pound of cheese (an energy intake of 4 × 103 kJ). Suppose that none of the energy was…

A: Given data, Energy = 4 × 103 kJ The enthalpy vaporization = 44.0 kJ The molar mass of water =…

Q: 2. A sample of iron weighing 6.50 g (specific heat 0.449 J/g°C) is colled from 25.3°C to -68.7°C.…

A: The question is based on the concept of chemical thermodynamics. we have been given mass of iron…

Q: Think about the metals aluminum and magnesium and the ions they form. Why might one metal be more…

A: Considering Aluminium and magnesium: The atomic number of Mg=12 Electronic configuration: 1s2 2s2…

Q: A friend claims to have constructed a machine that creates electricity but requires no energy input.…

A: Energy is defined as the capacity to do work.  There are various types of energy that are present.

Q: NaOH, ethanol heat

A: Organic reactions are those in which organic reactant react to form organic products.

Q: When a firecracker explodes, energy is obviously released. The compounds in the firecracker can be…

A: Given statement,        When a firecracker explodes, energy is released. The compounds in the…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: heat of fusion of pure silicon = ∆Hfus =  43.4 kJ/mol Mass of silicon = 9.44 g Atomic mass of Si =…

Q: Identify the force present and explain whether work is donewhen (a) a positively charged particle…

A: (a) Work is said to be done if an object is moved against a force. When a positively charged…

Q: If forming new bonds releases energy, how can a reaction ever be endothermic?

A: Endothermic reaction means the reaction in which energy is absorbed.

Q: QUESTION 5 Which of the following statements is true? Heat is a form of energy, but temperature is…

A: In this question, we will select the correct statement about heat and temperature.  You can see the…

Q: heat energy is required

A:

Q: How do heat and work affect the system

A: Heat and work are two unique methods of moving energy starting with one system then onto the next.…

Q: What is the mass % of work in Calcium hyboworkite. A/

A:

Q: Define the term heat of fusion?

A: In thermodynamics, whenever, there is a change in state of matter takes place, heat is exchanged…

Q: What does the word "closed system" indicate about the calorimeter? What is the term given to…

A: A closed system in thermodynamics means a system from which exchange  of energy or heat takes place…

Q: Jiffy popcorn is made on a stovetop and has a metal handle. After a while the metal handle becomes…

A: Conduction : It is the process of heat transfer which is a results of the energy transfer due the…

Q: 20.0 grams of water at 85ºC is added to 35.0 grams of water at 10.0ºC in an insulated container.…

A:

Q: An engineer is designing a wire using an unknown material that will carry large amounts of…

A:

Q: 9. List the 6 state changes and indicate if they are endo- or exothermic.

A: As we move from solid to liquid to gas, all accompanying phase changes require the input of heat.…

Q: 2. If an object has a low specific heat, would it be more like a conductor or an insulator? Explain.

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Q: What is meant by the term structure of material?

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Q: Choose the INCORRECT statement. The energy stored in chemical bonds or generated from intermolecular…

A: 1. Correct statement.The energy stored in chemical bonds or generated from intermolecular forces is…

Q: If A H;° is a positive number then O that molecule has less chemical potential energy stored in its'…

A: Heat energy is released during exothermic reaction and ΔHf° is a negative value. Heat energy is…

Q: Where does the energy come from to evaporate the estimated 425,000 km3 of water that annually leaves…

A:

Q: H2NNH2, OH heat

A: A ketone compound, that contains C=O bond, on reaction with hydrazine H2NNH2 in the presence of a…

Q: Calculate the quantity of heat, in kilojoules, associated with a 25.0 °C decrease in temperature in…

A: q = c*m*∆T q = heat  c = specific heat capacity of metal  m = mass of metal  ∆T = change in…

Q: Welding utilizes a variety of fuels. Two such fuels identified for comparison are acetylene (ethyne…

A: Answer: Amount of energy released during the combustion of 1g of fuel is called as its calorific…

Q: When you put the iron cube in the olive oil and the brick cube in the water what loses heat more…

A: Heat capacity is the quantity of heat required to increase the temperature of an object or a…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: Amount of heat energy needed = Number of mols × Heat of fusion

Q: 29% 1. Write a balanced enthalpy of formation equation for liquid water starting from the elemental…

A: Solving only first question in accordance with guidelines. You can repost remaining questions.

Q: )Which of the following cannot leave or enter a closed system: heat, work, or matter? Which cannot…

A: The system consists of those molecules which are reacting.The surroundings are everything else; the…

Q: The following diagram represents the Carnot cycle. Which of the following processes present when…

A: Carnot Cycle: An ideal machine to explain about the maximum conversion of heat into the work.…

Q: What is the specific heat of water? (cwater)

A:

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A:

Q: Which of the following scenes depict the process of an increase in the enthalpy?     Stirring a…

A:

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.