Report Table CP.3: Specific Heat of Calculations for the Specific Heat for an Unkhown Metal Mass of unknown metal (g) Mass of calorimeter cup (g) Mass of calorimeter and water (g) Temperature of boiling water bath ("C) Initial temperature of calorimeter water (C) Final temperature of water and metal ("C) Mass of water (g) Temperature change of water (C) (Do not include a negative sign Heat gained by water (cal) (De not include a negative sign) Heat lost by metal (cal) (De net include a negative sign) Temperature change of metal ("C) (Do not include a negative sip Specific heat of metal [cal/g °C) Specific heat of metal [J/(g"C)] O Average specific heat of metal [J/(gc)] ) Identify the Metal based on the average specific heat in J/(g°C) Trial 1 19.947 1.844 47.812 98.900 23.8 24.9 Table view List view ✓ Choose... Lead Copper Iron Trial 2 19.947 1.844 47.030 99.0 22.3 23.4

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A: Given information,   Mass of iron = 137 g   Initial temperature = 25.0 0C   Final temperature =…

Q: An 85.0 kg track runner is overheated, and has a core temperature of 42.0 ºC. If I couldlower this…

A: Given data:

Q: 2. Thirty-two joules of heat is added to a 255 gram iron bar How much will the iron bar's…

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Q: Yeong determined the AT for their 62.9874 g metal cylinder was -69.4 °C. They also determined that…

A: Given: For metal:mass, m1=62.9874gchange in temperature, ∆T1=-69.4∘C  { -ive sign means heat is lost…

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

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Q: 6. Water has a specific heat of 4.184 J/g°C while glass (Pyrex) has a specific heat of 0.780 J/g°C.…

A: Specific heat is the amount of heat energy required to raise the temperature of a body per unit of…

Q: The temperature of 756 g of water in a calorimeterincreases from 23.2°C to 37.6°C. How much heat…

A: Given: Mass = 756g Initial temperature= 23.2oC Final temperature= 37.6oC To find: The heat given off…

Q: Respond to questions on the Concept of energy exchange during a chemical reaction using calorimetry…

A: Given,  Initial temperature of Cu = Ti = 100.0 0C Mass of H2O = 50.0 g Initial temperature of H2O =…

Q: Ethanol and gold each absorb the same amount of heat energy at room temperature. If ethanol has a…

A: As we know, amount of heat added is expressed as Q= mc ∆t Where Q=Amount of Head Added c =Specific…

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: If .98 grams of of peanuts are burned in a calorimeter causing the temperature of 150 grams of water…

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Q: .The specific heat of ethyl alcohol is 2.45J / g°C and that of silver is 0.235J/g°c. Therefore,…

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Q: When thermal energy is transferred from the system to its surroundings, heat (q) is:

A: When thermal energy is transferred from the system to its surroundings, heat (q) is negative  It is…

Q: How much heat is required to raise the temperature of 6.21g sample of iron from 25.0 Celsius to 79.8…

A: Temperature change (ΔT) taking place in 6.21g of iron is given.

Q: Find the heat change of the reaction. CH4 (g) + 2 Cl2 (g) à CCI4 (g) + 2 H2 (g) Substance AHf…

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Q: The quantity of heat required to change the temperature of 1g of a substance by one degree Celsius…

A: The answer is given as :

Q: How heat was measured traditionally ?

A: Heat is always defined as the measure of transferred energy. In the exothermic process, heat is…

Q: Decomposition of mercury oxide, HgO, to mercury and oxygen gas, requires 87.1 kJ of heat. What is…

A: The thermochemical reaction is a balanced chemical reaction involving the energy absorbed or…

Q: Part 2: Determination of the Specific Heat Capacity of a Penny 1. Volume of water: 40.0mL 2. Initial…

A: Given : Mass of penny = 37.4 g Volume of water = 40.0 mL Initial temperature of penny = 45.6 oC…

Q: e of unknown metal Mass of cup and water:                            170.54 g Mass of cup:…

A: The heat gained or released by a substance is guided by the following formula-q=mc∆Tm is mass of…

Q: True or false, a chemical reaction that liberates heat energy is said to be exothermic.

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Q: What is the mass of a sample of alcohol (specific heat = 2.4 J/g°C), if it requires 4780 J of heat…

A: q = mc∆T  q is the amount of heat energy m is the mass of substance  c is the specific heat of…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.