How much heat must be added to a 8.21 g sample of gold to increase its temperature by 6.2 Celsius? The specific heat of gold is 0.13 J/goC

Q: A 6.57 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: Calculate the amount of heat (in kJ) required to raise the temperature of 1.65 lb of water from 294K…

A: Given : Initial temperature =  294K Final temperature =  303K Mass of water = 1.65lb

Q: What is the specific heat of a 1,500.00 gram sample of wood that absorbs 67,500 Joules of heat…

A: The given data contains, mass = 1500 g. Heat = 67500 Joules.

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: The specific heat of tin c

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Q: heat

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Q: The specific heat of a certain type of oil is 1.89 J/g°C. How much heat energy is needed to raise…

A: The amount of heat required is related to specific heat capacity as,…

Q: How much will the temperature of a cup (176 g) of coffee at 94.8 °C be reduced (in °C) when a 45 g…

A: Given, mass of cup of coffee,mc = 176 g initial temperature of cup , Tc=94.8°C mass of silver spoon…

Q: A copper rod with a mass of 21.0 g cools from 95.0oC to 45.0oC when placed in a water bath. If the…

A: The following equation relates that the quantities between heat and specific heat capcacity: q=mCΔT…

Q: If 1495 J of heat is needed to raise the temperature of a 317 g sample of a metal from 55.0°C to…

A: The specific heat capacity is given as,

Q: Calculate the amount of heat absorbed by 23.0 g of water when its temperature is raised from 31.0°C…

A: Answer

Q: When 673.0 J of heat energy is added to a 46.0 g sample of solid copper, the temperature increases…

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Q: Solid magnesium has a specific heat of 1.01 J/goC. How much heat is given off by a 20.0 gram sample…

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Q: What is the specific heat of aluminum if the temperature of a 28.4 g sample of aluminum is increased…

A: The specific heat of a substance is defined as the amount of heat required to raise the temperature…

Q: A sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 40.0°C, determine the…

A: The Heat required to raise the temperature of 1 gram of a substance by one degree (1K or 1°C) is…

Q: The energy content of raisin bread is 13.1 kJ/g. Calculate the temperature increase when a slice of…

A: Given data:

Q: thermal energy

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Q: In the laboratory a student finds that it takes 71.6 Joules to increase the temperature of 11.6…

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Q: If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the…

A: Given,  Amount of heat added to a calorimeter = 4.168 KJ  Mass of water = 75.40 g  Initial…

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: A 135 g sample of metal requires 2.50 kJ to change its temperature from 19.5 oC to 100.0 oC. What is…

A: Given,Mass of the metal, m = 135 gHeat required, q =2.50 kJ = 2500 J    (1 kJ = 1000 J)Initial…

Q: A piece of metal with a specific heat of 1.09 J/gºC is heated to 108ºC and then placed in 139.785 g…

A: Given that: Mass of water = 139.785 gInitial temperature of water = 1.7oCFinal temperate of water…

Q: what quantity of heat energy must have been applied to a block of aluminum weighing 38.4g of the…

A: The total heat required (Q) is determined as follows. Q=mAlcAl∆T ...... (1)

Q: How much heat is required to raise the temperature of 1.5 x 103 g of water from 45F to 130.F? The…

A: The temperature conversation formula is

Q: the temperature of a silver coin decreases by 353°c as it releases 5,550 joules of heat. what is the…

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Q: How much heat, in kJ, would be needed to raise the temperature of 500.0 g of water from 14.5 ºC to a…

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Q: The specific heat of lead is 0.128 J/g·°C. How much heat is needed to raise the temperature of 4.90…

A: Introduction: Specific Heat Formula Heat added to a m kg substance which has specific heat c and…

Q: iberated (In KJ) from 3b6 g of mercury when It cools from to 12.0°C. The specific heat of mercury is…

A: Heat absorbed can be calculated by using the formula :                       q = ms∆Twhere, q is…

Q: How much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C? The…

A: • The values provided in the question are:-   i) Mass of a sample of aluminium, m = 38 g  ii)…

Q: A piece of copper alloy with a mass of 85.0g is heated from 30.0°C to 45.0°C. In the process, it…

A: To solve this problem we will use the formula   Q = m • C • ∆T   Where,  Q = heat absorbed  m = mass…

Q: How much heat is required to raise the temperature of a 825 g block of wood (specific heat = 1.8 %3D…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: A 42.0 g sample of water at 100.00°C was placed in an insulated cup. Then 15.4 g of zinc metal at…

A: Given, A 42.0 g sample of water at 100.00°C was placed in an insulated cup. Then 15.4 g of zinc…

Q: A piece of metal with a specific heat of 1.153 J/gºC is heated to 124.6ºC and then placed in 120.382…

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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.