Differentiate between the Exothermic and Endothermic processes?

Q: The temperature of a 33.7g sample of a metal increases by 27.2 oC after absorbing 201.7J of heat.…

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Q: What is the independent and dependent variable? Does the mass of a bouncy ball affect how much…

A: Dependent variable: A variable which depends on the other variable say, independent variable. It is…

Q: A chunck of lead at 91.7 degrees celcius was added to 200.0 g of water at 15.5 celcius. the specific…

A: Given:Specific heat of water = 4.18 J/goCspecific heat of lead = 0.129 J/goCInitial Temperature of…

Q: 24.0 g of metal at 78.3°C is cooled to 12.4°C and produces 194 J of heat. What is the specific heat…

A: Mass of substance M = 24.0 g  Initial temperature = 78.3 °C  Final temperature = 12.4°C  Heat…

Q: Given the following thermochemical data: HNO3(aq)+Ag(s) → AgNO3(aq)+½H2(g)   ΔH = 105.0 kJ…

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Q: The following are factors affecting specific heat except: Choose from the choices below:…

A: This question is related to defining the specific heat and factors that affect it. Follow…

Q: Select true or false for each of the following.   Energy can be changed in form.    ΔT in units of…

A: The answers for the questions are provided below. Here the concepts are used from thermodynamics.…

Q: J cal kJ 598 113 0.810

A: To convert the energy units, suitable conversion factors are required. The given energy units are…

Q: t takes 52.0 J to raise the temperature of an 9.00 g piece of unknown metal from 13.0∘C to 25.0 ∘C.…

A: According to the question we have, The heat required to raise the temperature of the metal is given…

Q: what is ΔHcond for this substance?

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Q: How many times more kinetic energy does the dump truck have than the car?

A: Given: Mass of sub compact car =1.6×103 Kg Mass of dump truck =1.70×104 Kg Speed of both truck and…

Q: A 167.8 g piece of iron initially at 25.0 Celsius, absorbs 10943 J of energy. What will the final…

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Q: A chemist carefully measures the amount of heat nee experiment shows that 205. J of heat are needed.…

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Q: what is ΔHcond for this substance

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Q: An electrical heater is used to supply 250.0 J of energy to a 20.0 g sample of water (specific heat…

A: Given,Mass of water = 20gq = 250 J.Specific heat of water = 4.184 J/go C

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: Use the concept of heat lost by metal = heat gained by water to calculate specific heat of the…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 477,0 g sample…

A: Mass of the sample = 477.0 gInitial temperature (T1) = Final temperature (T2) = Amount of heat…

Q: Calculate the energy required to heat 1.10 kg of mercury from -0.9 °C to 19.5 °C. Assume the…

A: Energy required (q) is calculated as - q = m×s×∆T Here, m = mass of the substance            s =…

Q: When H₂(g) reacts with O₂(g) according to the following reaction, 242 kJ of energy are evolved for…

A: Thermochemical equation- 2 H2(g) + O2(g) -----> 2 H2O(g)   ∆H = 242 KJ energy evolved For each…

Q: Constants | Periodic Table Titanium reacts with iodine to form titanium (III) iodide, emitting heat.…

A: Heat emmited = -839 KJ

Q: In the laboratory a student finds that it takes 1Joules to increase the temperature of 13.3 grams of…

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Q: In joules, how much heat is released when 42.0 g of Ag cools from 182. degrees C to 126. degrees C?…

A: We have to find out the heat release when 42 g Ag is cool. Given :  mass of Ag = m =42 g Initial…

Q: Calculate the change in the internal energy for a certain process if 800 J of work is done on the…

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Q: Select the correct term. 2CO2(g) + 566 kJ/mol 2CO(g) + O2(g) endothermic exothermic

A: 1)Endothermic reactions are reactions that require external energy, usually in the form of heat, for…

Q: Calculate the energy required to heat 861.0 g of aluminum from-1.2 °C to 6.9 °C. Assume the specific…

A: Specific heat capacity is amount of heat required to raise the temperature of one gram of substance…

Q: Calculate the energy required to heat 136.0 g of iron from -2.8 °C to 19.7 °C. Assume the specific…

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Q: a system has 63.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

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Q: N2(g) + 2H2(g) = N2H4(g) Enthalpy change

A: Calculate change in enthalpy of the reaction--

Q: 30.0-g sample of chromium is heated to 100.0 degress celcius in a boiling water bath. the samples…

A: When the chromium is lost heat and the calorimeter of water is gained the heat    And when the heat…

Q: what is the specific heat of something that goes from 23.6 degree celcius to 33.7 degree celcius…

A: Using conservation of energy equation   Q=mC∆twhereQ=heat energy m=mass of substanceC=specific heat…

Q: It takes 52.0 J to raise the temperature of an 9.00 g piece of unknown metal from 13.0∘C to 25.0 ∘C.…

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Q: The specific heat of a certain type of metal 0.128 J/(g⋅∘C). What is the final temperature if 305 J…

A: Specific heat capacity is defined as the quantity of heat absorbed by 1 g of substance to raise the…

Q: 1. What is the specific heat of ethyl alcohol if 129J of heat is required to raise the temperature…

A: Specific heat is defined as the heat required to raise the temperature of one gram of a substance by…

Q: In endothermic reactions, heat is being absorbed and the internal energy of the system is…

A: Answer:Here:

Q: A 5.0-g sample of a metal increases in temperature from 20.0C to 22.0C when it absorbs 9.6 J of…

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Q: The gas in a piston (defined as the system) warms and absorbs 655 J of heat. The expansion performs…

A: The total heat of a system remains conserved. The system takes the heat and does the work, this…

Q: A 28.5 g piece of gold is heated and then allowed to cool. What is the change in temperature (°C) if…

A: Change in temperature 28.02oCExplanation:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 677.0 g sample…

A: When we heat a substance the temperature of the substance increases. The required amount of heat to…

Q: 4. What speed must a 250.0 kg motorcycle be travelling at to have a kinetic energy of 2.8 x 10* J?

A: We nees to find the speed of motorcycle if, kinetic energy = 2.8×104 J and, mass = 250.0 kg

Q: 125 g of water are mixed with 10.5 g of KBr. The initial temperature was 24.2 °C and the final…

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Q: Given the following thermochemical equations: 2 OF2 (g) → 02 (g) + 2 F2 (g) 2 CIF (g) + O2 (g) →…

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Q: how many joules of heat are absorbed?

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Q: ΔHcond

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