Which of the following is not necessary to state of a chemical system? a) colour b) composition c) pressure d) temperature

Q: What happens to the average kinetic energy of the water molecules in your body when you have a…

A: Whenever a body moves or it comes in motion from a rest position then, it acquires energy. This…

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: In an exothermic reaction, chemical energy is converted to

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Q: Amount of energy greater than the energy contained in the reactants, which must be overcome for a…

A: Collision theory tells us that basic requirement for a reaction to occur is that the reacting…

Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: Which is an example of an endothermic reaction

A: Endomthermic reaction is  a type of chemical reaction in which heat or thermal energy is absorbed by…

Q: what is the heat evolved

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Q: A student mixed sodium carbonate and calcium chloride in a test tube. A white solid appeared…

A: Given reactant  Sodium carbonate  Calcium chloride Product  To be determined

Q: Explain potential and kinetic energy in chemical

A: This  question is related to topic of energy.

Q: An automobile engine provides 561 Joules of work to push the pistons. In this process the internal…

A: To solve this question, use the formula which contains q, ∆U, and w in it. Give the signs to the…

Q: Fill in the blank by the name of the definition: Heat of  __________ is the heat transferred when 1…

A: An acid reacts with base forming salt and water as the product.

Q: CS2 and 10.0 g Cl2 reacts by the followi CS2(g) + 3Cl2 (g) AH = -230. kJ

A: Given, Mass of Cl2 = 10 g Mass of CS2 = 10 g Molar mass of CS2 = 76 g/mol Molar mass of Cl2 = 71 g…

Q: almonia, water, iron and gold which has highest specific heat capacity ?

A: Given information,           Ammonia          Water           Iron           Gold

Q: (Calorimetry)

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Q: :An endothermic reaction causes the surroundings to

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Q: What is the heat of reaction and what is the difference between an endothermic and an exothermic…

A: The energy released or absorbed during a  chemical reaction is termed as the heat of reaction or…

Q: The diagram below shows how a chemical reaction in a cylinder with a piston that affects the volume…

A: a)Here after the reaction the volume is decreasing. That is Vfinal < V initial.Since the work is…

Q: Define chemical energy

A: Define chemical energy

Q: H,O*, heat

A: The given molecule is named as heptane-2,6-dione, and is reacting with H+ in the presence of heat…

Q: How many grams of ammonium chloride were formed if the reaction released 518 kJ of heat

A: Given :-  N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl                                               ∆Hrxn =…

Q: Can you conclude that heat is always noticeably released in a chemical reaction?

A: Can you conclude that heat is always noticeably released in a chemical reaction?  answer of the…

Q: How can chemical potential energy be related to the heat lost or gained in chemical reactions?

A: Exothermic reactions are those in which heat is released and endothermic reaction are those in which…

Q: The First Law of Thermodynamics tells us A) that the energy of the universe is always increasing. B)…

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Q: .Excess heat energy liberated by an oxidation reaction iscalled the ___________.

A: Oxidation reaction is a reaction in which oxygen is added to the species. In terms of electron, in…

Q: An automobile engine provides 549 joules of work to push the pistons. In the process the internal…

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Q: What is meant by the term heat of reaction? What other name is a synonym for this term?

A: 1.The Heat of Reaction is the change in the enthalpy of a chemical reaction that occurs at a…

Q: Based on the law of conservation of energy, which of the following describes the transformation of…

A: Law of conservation of energy;   Energy can be neither be created nor destroyed but it can be…

Q: Is internal energy a state function?

A: Energy is the capability of doing work.

Q: How do I find specific heat of cadmium metal? I have the initial temerature, final temperature and…

A: Step 1-Specific heat capacity(c) is the amount of heat given to one unit mass of the substance that…

Q: If the dissolution of a salt in water is an endothermic reaction, how will the temperature of the…

A: Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the…

Q: Calculate the amount of heat released from combustion of 1 g of wood

A: Please find your solution below : Note : This question requires the values of heat capacity and…

Q: determine the heat of reaction

A: This problem is based on Hess's  law of thermodynamics   The Hess law states that the change of…

Q: What is the energy of the reactants?

A: The energy of reactants is defines as the energy of the reaction at time zero.

Q: rogen sulfide, H2S, is produced during decomposition of organic matter. When 0.4190 mo H2S burns to…

A: Given, Heat released = -217.0 KJ

Q: A helium-filled balloon spontaneously deflates overnight as He atoms diffuse through the wall of the…

A: According to the first law of thermodynamics, There has no change in the system's internal energy as…

Q: In order to obtain the largest possible amount of heat from a chemical reaction in which there is a…

A: Endothermic reactions are those reactions where external heat has to be supplied to the reacting…

Q: ch of the following processes as endothermic or exothermic and include the sign for AH. opyl alcohol…

A: We habe to categorise given reaction as endothermic or exothermic and tell their ∆H sign

Q: Consider the following chemical reaction

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Q: Hydrogen gas reacts with oxygen to form water. 2H2(g)+O2(g)-->2H2O(g) the ethalpy of the chemical…

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Q: The value of An, in the combustion reaction of methane is

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Q: H,SO, heat

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Q: What are some errors in the experiment about the Heat of Dissolution of Salt?…

A: Enthalpies of Solution and DilutionActual changes, like softening or vaporization, and compound…

Q: The coffee-cup is a constant type of calorimeter.

A: Coffe cup calorimeter is type of calorimeter.

Q: Which of the following changes is an exothermic chemical reaction? A combustion of methane B…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: Which statement is true of a chemical change? A. Heat is always exchanged between the system and…

A: Thermodynamics is the branch of chemistry in which we deals for the change in energy or heat, work…

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Mass of unknown salt = 4.81 g Molar mass of unknown salt = 116.82 g / mol Moles of unknown salt…

Q: An automobile engine provides 572 Joules of work to push the pistons. In this process the internal…

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Q: enthalpy change

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Types of Polymers on the basis of Method of Preparation