If the temperature of 12.80 grams of ethanol increases from 26.0°C to 74.0 °C, how much heat has been absorbed by the ethanol? The J specific heat of ethanol is 2.44 o °C

Q: What is the specific heat of a 66.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The relation between specific heat and heat energy is given by q = m * C * ΔT Where q = heat energy…

Q: A 5.1 g sample of water starting at 58.2°C loses 441 J of energy in the form of heat. What is the…

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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: The temperature of a sample of aluminum increased by 22.5 degrees celsius when 257 J of heat was…

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Q: The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to…

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Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

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: When a sample titanium was supplied 1.00kj of energy, the temp rose to 103.5 degrees celcius. If the…

A: Given information, Amount of heat supplied (Q) = 1.00 kJ = 1*103 J Change in temperature (∆T) =…

Q: A 21.35 g sample of a substance is initially at 20.6 °C. After absorbing 2231 J of heat, the…

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Q: How much heat is required to raise the temperature of a 10.75-g sample of iron (specific heat =…

A: Given Information:Mass of iron sample = 10.75g Final temperature = 79.8oCInitial temperature = 25…

Q: How much heat is added to increase a 8.45 g sample of gold to increase its temperature by 6.2 °C?…

A: We have been given mass of gold,specific heat of gold and increase in temperature and we have been…

Q: a 176 g china serving bowl is warmed 58.3°C when it absorbs 2.0 kcal of heat from a serving of hot…

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Q: How much heat is needed to raise the temperature of 91.0  g of water from 34.0 °C to 98.0 °C?

A: Mass of water, m =91.0  g Initial temperature, T1=34.0 °C Final temperature, T2=98.0 °C Specific…

Q: An unknown solid substance weighs 227.0 g, and requires 3460 J to increase its temperature from…

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Q: A 47.8−g sample of ethylene glycol, a car radiator coolant, loses 600. J of heat. What was the…

A: Given that mass of sample is 47.8 g. The specific heat capacity is 2.42 J/g K . The temperature…

Q: Suppose you heat a metal object with a mass of 30.0 g to 95.5 °C and transfer it to a calorimeter…

A: Given information is as follows: The mass of the metal = 30 g The initial temperature of the metal =…

Q: A 15.0 gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat of lead…

A: The change in temperature of the lead ball can be calculated by equation (1). where q is the heat…

Q: 22.0 g of a metal absorbs 713 J when it is heated from 28.3 degrees to 72.8 degrees what is the…

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Q: A sample of water with a specific heat of 4.186 joules/gram is cooled from 45 degrees celsius to 25…

A: Given that, specific heat of water = 4.186 joules/(gram.oC) And the sample of water is cooled from…

Q: The specific heat capacity of C is 0.7100 J/g*°C. How many joules of heat are necessary to raise the…

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

Q: Calculate the heat change when 366 g of mercury (specific heat = 0.139 J/g.°C) cools from 77.0 °C to…

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Q: How much heat is absorbed when the temperature of a 4.1 g copper coin increases from 15.3 °C 74.6…

A: The problem provides us with the following information:Mass of the copper coin (m) = 4.1 gInitial…

Q: What is the specific heat capacity (J/g• °C) of a metal object whose temperature increases from…

A: Specific heat capacity is the amount of heat absorbed by 1 gram of a substance to raise its…

Q: The specific heat of a certain type of cooking oil is 1.75 cal/(g °C). How much heat energy is…

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

Q: Aluminum has a specific heat of 0.902 J/goC. How much heat is gained when a piece of aluminum with a…

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

A: The specific heat of the metal is = 0.128 J/(g.oC) The amount of heat added is = 305 J The initial…

Q: Q5 A metal object with a mass of 19 g is heated to 96 °C and then transferred to a calorimeter…

A: Given : mass of metal = 19 g = mM Initial temperature of the metal =  96°C = Tm mass of water = 75 g…

Q: A metal cylinder has a mass of 100.00 g is heated to 95.50 Degrees Celsius and then put in 245.5 g…

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Q: What is the specific heat of 20.0 g piece of an unknown substance that changes from 25°C to 75°C…

A: Heat required to raise the temperature of the substance through 1°C is known as specific heat of the…

Q: how many joules of energy are released when 100.0 g of water cools from 98 degrees Celsius to 30° c…

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Q: The specific heat of ethylene glycol is 2.43 J/g·K. If x kJ of heat is needed to raise the…

A: Given that: Mass of ethlene glycol(m)  = 35g T1 = 15.2°C T2 = 60.5°C  Specific heat (C) = 2.43 J/g.K…

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

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: A 54.12 g sample of a substance is initially at 25.4 °C. After absorbing 1603 J of heat, the…

A: We know that, Q = mc∆T  Where,  Q = heat  m = mass  c = specific heat  ∆T = change in temperature

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

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Q: A 57.60 g sample of a substance is initially at 22.6 °C. After absorbing 2787 J of heat, the…

A: Given  m = 57.60 g T1 = 22.6°C T2 = 182.8°C Q = 2787 J Specific heat of substances(c)=?

Q: How much energy is needed to change the temperature of 2.00 g of aluminum from 20.0°C to 25.0°C? The…

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Q: What is the specific heat (c) of a metal if the temperature of a 15.5g sample increases from 29.5℃…

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

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 854.0 mg sample…

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Q: How much heat is required to warm 100.0 g water from 31.8 degrees Celcius to 67.5 degrees Celcius?…

A: The heat required is calculated as,

Q: If 136 J is required to change the temperature of 8.75 g of nickel from 0.0°C to 35.0°C, what is the…

A: Specific heat capacity is amount of heat                      required to raise temperature of given…

Q: Part A The specific heat capacity of sold copper metal is 0.385 JigK. How many joules of heat are…

A: Given, specific Heat of solid copper metal  = 0.385 J/gK Mass of block = 1.55 Kg = 1550 g  Initial…

Q: A 23.56 g sample of a substance is initially at 23.7 °C. After absorbing 2083 J of heat, the…

A: The specific heat capacity is defined as the amount of heat requires to raise the temperature if 1…

Q: A 30.0g piece of copper absorbs 481.95 J of heat while rising from 23.0°C to 65.5 °C. Calculate the…

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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.