The table shown here lists the specific heat of several substances. Substance Specific heat J/g/°C 4.18 2.44 1.80 1.40 water ethyl alcohol benzene sulfuric acid Which of the following statements are true? Select all that apply. ►View Available Hint(s) 0 Water has a high specific heat due to the hydrogen bonding between water molecules. More heat is required to raise the temperature of 1 g of benzene 1 °C than to raise the temperature of 1 g of water 1 °C. More heat is required to raise the temperature of 1 g of water 1 °C than to raise the temperature of 1 g of ethyl alcohol 1 °C. Sulfuric acid is less resistant to temperature change than water. Ethyl alcohol likely exhibits more hydrogen bonding than water. Benzene is more resistant to temperature change than sulfuric acid. Water is less resistant to temperature change than ethyl alcohol.

Q: A 110.0-g sample of a gray-colored, unknown, pure metal was heated to 92.0 oC and put into a…

A: Assuming specific heat of metal is C. Since all the heat released by metal in reaching the final…

Q: mestion 41 of 41 Suppose a boil water notice is sent out advising all residents in the area to boil…

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Q: A 140.0 g sample of water at 25.0C is mixed with 114.0 g of a certain metal at 100.0 °C. After…

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Q: A scientist developed a new metal alloy for use in cookware. The alloy has several properties that…

A: Given: The mass of alloy, (m1) = 11.66 g. The mass of water, (m2) = 50 g. The initial temperature of…

Q: If Water has a specific heat of 4.184 J/g°C. How much heat is required to increase 10.0 g of water…

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Q: Specific Heats of Substances Substance Specific Heat (J/g°C) Substance Specific Heat (J/g*C) Ice…

A: Answer

Q: A 10.0 g piece of metal is initially at 100.0°C. It is dropped into a coffee cup calorimeter…

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Q: How much will the temperature of a cup (175 g) of coffee at 94.3 °C be reduced (in °C) when a 47 g…

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Q: Suppose you have samples of gold, iron, and aluminum, all of the same mass. If the same quantity of…

A: Given information, Specific heat of gold = 0.13 J/g °C Specific heat of iron = 0.45 J/g °C Specific…

Q: Which of the following is true about specific heat? A) Specific heat is measured by dividing the…

A: Specific heat is defined as the amount of heat needed to raise the temperature of 1 gram of a…

Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

A: Given: Volume of water to be boiled = 17.0 L = 17000 mL…

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g.°C)…

A: Heat energy is given by q = m * C * ΔT where q = heat energy m = mass of the substance C = specific…

Q: 4. A common problem is to mix two liquids, say 125g of water at 24°C with the same mass of water at…

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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 constant pressure (or coffee cup calorimeter) contains 125g of water at a temperature of 24.2°C.…

A: Given , mass of water = 125 ginitial temperature, Ti=24.2°Cmass of KBr added = 10.5 gFinal…

Q: Specific Heats of Substances Substance Specific Heat (cal/g⋅°C) Brick 0.20 Ethanol 0.58…

A: The concept is based upon specific heat capacity which may be defined as the amount of heat energy…

Q: A chunk of lead at 91.7°C was added to 200.0 g of water at 15.5°C. The specific heat of lead is…

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Q: A solution is made by mixing 212.0 mL of ethanol initially at 10.0 C with 212.0 mL of water…

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Q: Consider the following specific heats of metals. Metal Specific Heat Aluminum 0.897 J/°C∙g…

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Q: A calorimeter has a negligible heat capacity. It contains 52.3 g of water initially at 22.4 Celsius.…

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Q: Sort the following scenarios based on whether they result in positive or negative heat (+heat or…

A: Answer: Whenever system ( be it object or chemical reaction) loses the heat then heat change will be…

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A: Given: Mass of metal = 346 g. Volume of water = 250 mL. Initial temperature of water = 24.1 oC Final…

Q: If Water has a specific heat of 4.186 J/g°C. How much heat is required to increase 10.0 g of water…

A: We know that Q = m*C∆T

Q: A 24.6 g sample of a metal is heated to 110.0°C and then placed in a coffee cup calorimeter…

A: Answer: This is the question based on energy conservation, one object is losing the heat and other…

Q: student is asked to determine the heat of solution in J/g for the compound ammonium nitrate…

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Q: When 514 J of heat is added to a sample of liquid water, the temperature rises from 27.8°C to…

A: Specific heat capacity is the amount of heat needed to raise the temperature(usually 1°C) of given…

Q: Enter your answer in the provided box. A 25.95−g sample of methanol at 35.6 ° C is added to a…

A: Given, Mass of methanol = 25.95g. Initial temperature of methanol = 35.60C. Mass of ethanol =…

Q: A chunk of lead at 91.7°C was added to 400.0 g of water at 15.5°C. The specific heat of lead is…

A: Just apply  Heat given = Heat taken

Q: A hot 105.0 g lump of an unknown substance initially at 152.2 °C is placed in 35.0 mL of water…

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Q: Specific Heat Mass of metal 42.156 g Mass of cups and water 60.082 g Mass of cups 10.811 g Mass of…

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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: gold bar of  unknown amount absorbs 1.09 kJ of heat and raises its temperature from 5.3 °C to 72.2…

A: Heat absorbed, q = mCs∆T  ∆T = T2 - T1  T1 = Initial temperature T2 = Final temperature m = Mass of…

Q: The temperature of an object increases by 24.4 °C when it absorbs 3725 J of heat. Calculate the C =…

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…

Q: Determine the final temperature of a gold nugget (mass = 376 g) that starts at 288 K and loses 4.85…

A: Specific Heat Capacity of gold is =0.128 J/gc Initial temperature = T1 = 288K…

Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

A: Given: The volume of water, (VH2O) = 12 L = 12000 mL. The initial temperature of the water, (T1) =…

Q: A 100.0g sample of water at 25.30 degrees Celsius was placed in an insulated cup. Then 45.00g of…

A: Given that: Mass of water = 100.0 g Initial temperature of water = 25.30°C Mass of lead pellets =…

Q: A solution is made by mixing 260.0 mL of ethanol initially at 15.5 °C with 260.0 mL of water…

A: Given volume ethanol =260.0 mLinitial temperature of ethanol =15.5 °Cdensity of ethanol =0.789…

Q: na calorimeter with 50.0mL of of 44.0°C. What's the specific he

A: Calculate the heat, which is transferred from metal to water.  Heat(Q) = [ m • s • ∆T ] + [ Cp • ∆T…

Q: Thirty grams of silicon at 80.0°C is added to 70.0mL of water at 20.0°C. Calculate the final…

A: Given: The mass of silicon = 30 g The initial temperature of silicon = 80.0 °C The volume of water =…

Q: A compound is 32.07% carbon by mass. What mass of the compound would contain 45.00g of carbon?…

A: 1 mol is defined as the presence of 6.022 x 1023 entities (atoms, molecules, ions etc.)in a…

Q: An unknown metal has a mass of 61.3 g. When 672 J of heat Metal Specific heat (J/g C) are added to…

A: Given: Mass of metal = 61.3 g Heat added = 672 J Change in temperature = 24.4°C

Q: Which statement best defines specific heat? The amount of heat required to increase the temperature…

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Q: An unknown substance has a mass of 25.9 g. The temperature of the substance increases from 28.7 °C…

A: Mass of Unknown (m) =25.9 g Change in Temperature (ΔT) = 42.9°C - 28.7°C = 14.2 °C Heat added (q) =…

Q: An unknown substance has a mass of 22.5 g. The temperature of the substance increases from 27.9 °C…

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Q: A hot 105.9 g lump of an unknown substance initially at 154.0 °C is placed in 35.0 mL of water…

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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: If a 50.0 g piece of brass rod at 98.0°C is placed in 150.0 g of water at 25.0°C, what is the final…

A: Given, For brass, Mass of brass (mbrass) = 50.0 g Specific heat capacity of brass (Cpbrass) = 0.38…

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.