(Q2) Which of the following is an endothermic process? Water freezing Riding a bike up a hill Any reaction that releases heat energy O A combustion reaction O Ice melting

Q: Distinguish between heat and temperature, using examples to clarify your definitions.

A: Temperature is used to describe the average kinetic energy of a molecule. Heat transferred from hot…

Q: How many calories of energy does it take to heat a 115.2mL sample of water from 11.0° C to 88.0° C?

A: Since the heat required to heat the water (liquid state) is given by  Q = mC ΔT where  ΔT = change…

Q: Classify the following processes as exothermic or endother-mic: (a) freezing of water; (b) boiling…

A: The processes in which heat energy is absorbed are called as endothermic processes and the processes…

Q: Water (2430 g ) is heated until it just begins to boil. If the water absorbs 5.85×105 J of heat in…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: ) Listen Which one of the following is an endothermic process? Freezing water O Condensation of…

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Q: Given the specific heat of lead is 0.129 J/g.C and that it takes 93.4J of energy to heat a sample of…

A: Specific heat It is amount  of heat required to change the temperature of a substance by 1 Degree of…

Q: gold Aluminum Silver 10.0 g 10.0 g 10.0 g mass

A: heat is the form of energy , it can be transferred from one system to another at different…

Q: 3. Classify the following processes as exothermic or endothermic: (a) freezing of water; (b) boiling…

A: The answer to the following question is: Exothermic reaction : Exothermic reactions are processes…

Q: A 152.0 g ball traveling at a speed of 2.30 m/s has a kinetic energy of Answr J

A: The kinetic energy of the ball is given by: where m = mass of the ball = 152.0 g v = velocity of…

Q: How much heat energy, in calories, is needed to heat 150 grams of water from 20.4 C to 50. 7 C ?

A: Solution With data of the particular heat capability of a substance, its mass, and therefore the…

Q: which of the following has the greatest amount of potential energy  A. a ball at the top of a hill…

A: answer:- This question is answered by using the simple concept of potential energy which is directly…

Q: Classify each process as exothermic or endothermic.(a) dry ice subliming (changing from a solid…

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Q: Rank the physical and chemical changes in order of decreasing of the amount of energy released: (a)…

A: If the quantity of water that is condensed in and subsequently precipitated from a cloud is known,…

Q: 1) Na 1, Acetone 2) Na* Ng, THF 0 °C 85% H3PO4. OH H20, heat

A: i)  Nucleophilic substitution biomolecular reaction (SN2):The bimolecular nucleophilic substitution…

Q: The specific heat of iron is 0.11 cal/g °C. Assuming that no heat is lost during the experiment,…

A: Given , Specific heat of iron ( s1 ) = 0.11 cal/g °C Mass of iron ( m1 ) = 30.0 g Initial…

Q: In the illustration, N is color-coded as blue and O is color-coded as red. ⠀- What kind of change is…

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Q: a ball has a kinetic energy of 106 J. If the ball is moving at a velocity of 2.51 m/s, what is the…

A: Since , Kinetic energy =1/2 mv 2 Where m = mass (in kg ) V= speed (in ms -1)

Q: 3. A solid chemical called Instant Ice can be purchased, which when mixed with water at room…

A: Endothermic reactions are those in which the enthalpy change, that is the difference in enthalpy…

Q: When a chemical reaction or a phase change occurs and energy is released to the surroundings then…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Assuming the density of the wine to be 1.0 g/mL, what is the caloric content due to the alcohol…

A: Given: The heat of combustion of ethanol=-1367 kJ/mol The wine contains, by mass 12.1% ethanol The…

Q: KMNO4, -OH HO. C H3O+, heat H,SO4

A: We have given the organic reaction and we have to find the major product and the mechanism of the…

Q: For this question, is this an endothermic or exothermic reaction? I am confused at the part where…

A: We will use first law of thermodynamics

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 748.0 mg sample…

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Q: When the automobile brakes to it stop is the lost kinetic energy converted mostly to heat or some…

A: When brakes are applied, the kinetic energy of the car is converted to some other form of energy and…

Q: State whether the kinetic energy of the underlined object increases or decreases as a result of the…

A: Kinetic energy is the energy an object possesses due to its motion.An object of mass (m) moving at…

Q: How many joules are required to heat 65g of water from 12 degrees celsius to 76 degrees celsius?

A: The specific heat of water, i.e., the heat required to raise the temperature of 1 g of water by one…

Q: give a specific example of a process that has the energy changes and transfers described. (For…

A: From the first law of thermodynamics, In an adiabatic process, there is no thermal contact between…

Q: Is a burning candle an endothermic or exothermic reaction?

A: Exothermic reaction in which heat is released and endothermic reaction in which heat is gained In…

Q: Br 1) CI' AICI3 2) Zn(Hg), HCІ, heat

A: The reaction given is,

Q: Which of the following objects has the greatest kinetic energy?(a) a 500-kg motorcycle moving at 100…

A: Given data: mass, m = 500 Kg velocity, v = 100km/hr

Q: Which of the following objects has the greatest kinetic energy?a 10,000-kg truck moving at 5 km/h (

A: The given data: Mass, m= 10000 Kg  Velocity, v = 5 km/hr

Q: -ntify the following as exothermic or endothermic. q = -1200 J AH = 527 kJ Two chemicals mis…

A: 1)     q = -1200 J   HEAT GIVEN BY THE SYSTEM IS TAKEN AS NEGATIVE,CLEARLY HEAT IS GETTING OUT OF…

Q: NaOH OH H20, Heat

A: The product is as follows:

Q: Enter your answer in the provided box. A 244-g aluminum engine part at an initial temperature of…

A: 16. Given information,    Mass of Al engine part = 244 g    Initial temperature = 11.19 0C = 284.19…

Q: Which of the following statements is true with respect to the flow of heat? Group of answer choices…

A: The flow of heat occurs due to the difference in temperature between two ends.

Q: How many joules of energy are needed to heat 7g of water from 105.0 C to 110.0 C?

A: With the help of the specific heat capacity of a substance,  mass and temperature change conversion…

Q: _NH2 heat но- -OH NO2 heat но—$— он

A: The replacement of the hydrogen atom of an aromatic compound by sulfonic acid (-SO3H) functional…

Q: A solid chemical called Instant Ice can be purchased, which when mixed with water at room…

A: Instant ice absorbs heat from the water at room temperature when instant ice and water are mixed…

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water with…

A: Given, The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed…

Q: what is the unit, including its prefix, for 10^-6 of the derived unit for energy?

A: The ability to do work is called energy.

Q: If a television requires 150 kJ/h to run, how many hours can the television run on the energy…

A: 1 gallon of gasoline has energy equal to 33.7 kWh 1kWh = 3600000 J/s 33.7 kWh = 33.7 X 3600000 J/s =…

Q: If 150 grams of water changes temperature by 7.2 °C, how much heat energy flows

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Q: Which of the following vocabulary words defines the energy due to motion?  A.Heat B.Potential…

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Q: If the specific heat of a ceramic cup is 0.583 J/(g °C), how much heat (in J) is required to raise…

A: To calculate heat energy, we have to use the formula : Q = m*s*Δt        ------(1) where, Q is heat…

Q: What is the heat joules required to raise the temperature of 25 grams of water from 0 degree C to…

A: We have to calculate the heat in joules and calories require to raise the temperature of water.…

Q: Which of the following describes a reaction that "feels" cold? Exothermic Endothermic There isn't…

A: Given  the following discrib a reaction thats feel cold

Q: How many joules of heat are required to heat 65 g lead from 22.0°C to 98.5°C?

A: The given mass of lead is 65 g. The specific heat of lead is 0.128 J/g °C. The given temperature…

Q: show the calculations of the amount of kilocalories and also kilojoules you consumed in a day. use…

A: We need energy in order to perform various actions. Energy is released from ATP. It is known as the…

Q: What is the specific heat of an unknown matter if a 20.00 kg of it released 300000.0 J of heat to…

A:

Q: Which of the following is an endothermic process for the system? In each case, the “system” is…

A: The endothermic process is which gains energy from its surroundings. The exothermic process is the…