How much heat is required to convert 135 g of liquid water at 15 °C into water vapor at 120 °C? Cliquid water = 4.184 J/g °C Csteam= 1.84 J/g °C Cice = 2.09 J/g °C AHvap = 40.65 kJ/mol AHfus = 6.01 kJ/mo %3D 358 kJ O 1258 kJ

Q: Calculate heat change in joules for vaporization of 3.00 g of water at 100 ∘C∘C.

A: Heat of vaporization: The amount of heat required to convert 1g liquid into vapor. Heat vaporization…

Q: How much energy is required to vaporize 37.8 g of benzene (C6H6, molar mass = 78.0 g/mol) at the…

A: Mass of benzene  = 37.8 g molar mass of benzene (C6H6) = 78.0 g/mol boiling point of benzene = 80°C…

Q: A 20.0 g mass of ice is heated from 0°C until it completely turns to vapor at 100°C. If you are…

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Q: 6. How much heat is required to raise the temperature of 215 g of liquid CH3OH from 20.0°C to 30.0°C…

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Q: How much energy (heat) is required to convert 33.5 g of H2O(l) at 8.7°C to H2O(g) at 129.3°C?…

A: Mass of water (liquid)  = 33.5 gMoles of H2O =  = 1.86 molInitial temperature (T1) = 8.7 °CFinal…

Q: Based on the thermodynamic properties provided for water, determine the energy change when the…

A: Mass of water = 0.350 kg = 350 g Molar mass of water = 18 g/mol Moles of water = 350 g / 18 g/mol =…

Q: Which processes absorb heat? vaporizing 65.0 mL of water freezing 12.5 g of water condensing 90.0 mL…

A: When solid changes to liquid or gas, it will require energy, and hence heat is absorbed.  When a…

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: The heat required to change the temperature form T1= 97.5 °C…

Q: 4. You have a beaker of water at 25 C, that has a mass of 145.5g. How much energy is needed to…

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Q: The graph shows a heat curve for an unidentified substance discovered by the Mars rover. What is…

A: We can determine Fusion temperature ( melting or freezing point ) and vaporization temperature from…

Q: What will the final temperature (in be if you add 400 kJ of heat to 1.00 L of water at 20 °C? The…

A: When heat is given to water, the temperature of water will increase.this increase in temperature is…

Q: A 0.503 g sample of steam at 106.7 °C is condensed into a container with 5.52 g of water at 16.9 °C.…

A: We know that,  q = mC∆T Where, q = heat m = mass C = specific heat ∆T = change in temp = Tinitial -…

Q: Part B How much heat is required to convert 21.5 g of ethanol at -150 °C to the vapor phase at 78…

A: mass of ethanol = 21.5 gram Initial temperature : To=-150 °C melting point: Tm=-114 °C boiling…

Q: Consider the following selected properties of water: 1.00 g/mL Density (liquid water): d = Heat of…

A: As we needed the amount of heat that is required to vaporize 54 mL of water, we only need the data…

Q: For a given species, see the thermodynamic values below. Boiling Point: Melting Point: Heat of…

A: The quantity of heat energy absorbed or released in a chemical reaction can be calculated using the…

Q: how much energy must be absorbed or released as heat to change 87.0 g of liquid propanone at 25.00°C…

A: The solution is as follows:

Q: How much energy in kilojoules is needed to heat 3.25 gg of ice from -10.5 ∘C∘C to 30.5 ∘C∘C? The…

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Q: Calculate the heat absorbed when 134.7 g of ice is heated from -19.8oC to 135.2oC.  Specific heat of…

A: The formula to calculate the heat absorbed (q) is given by q = m * c * ΔT, where m is the mass, c is…

Q: Use the following information on Na to determine the total amount of heat required to convert 150.0…

A: Heat required = [Na (48.0 to 98.0 oC) + ΔHfus X mole of Na (phase change from solid to liquid) + Na…

Q: How much heat is released ( in J) when 54.0 g of water at 10.0 °C is cooled to form ice at - 10.0…

A: Given the mass of water, m = 54.0 g  The initial state is water at 10.0 oC.  The final state is ice…

Q: How much heat energy is required to convert 90.2 g of solid iron at 24 C to liquid iron at 1538 ∘C?…

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Q: What amount of heat energy is required to melt 44.00 grams of ice (c = 2.10 J/g°C, ΔHfus = 334 J/g)…

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

Q: A chemical, C2H5OH (l), is used to disinfect the skin prior to an injection. If a 2.00 g sample of…

A: Given,  The mass of ethanol ( C2H5OH) = 2.00 g.  The molar enthalpy of vaporization of ethanol =…

Q: 6. Calculate the energy in the form of heat (in kJ) required to change 76.9 g of liquid water at…

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Q: Macmillan Learning Automobile airbags contain solid sodium azide, NaN,, that reacts to produce…

A: To calculate the value of work for the system if 16.3 g NaN3 reacts completely at 1.00 atm and 22…

Q: Consider the following selected properties of water: Density (liquid water): d = 1.00 g/mL Heat of…

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Q: The following information is given for lead at 1 atm: boiling point = 1.740×103 °C Hvap(1.740×103…

A: Given that : For lead : boiling point = 1.740×103 °C Hvap(1.740×103 °C) = 858.2 J/g melting…

Q: SH vaporization = 2300 J/g SH fusion of water = 300 J/g SH ice = 2.0 J/g K SH water = 4.0 J/g K SH…

A: Given data,Specific heat of vaporization=2300J/gSpecific heat of fusion=300J/gSpecific heat capacity…

Q: Liquid acetone (C3H6O, 58.08 g/mol, “nail polish remover”) has a heat capacity of 2.14 J/(g K) and…

A: Given,mass of liquid acetone = 100.0 g  molar mass = 58.08 g/mol specific heat capacity = 2.14 J/ (…

Q: 14. Calculate the amount of heat (in kJ) released when 35.0 g of benzene vapor is cooled from 96.0…

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Q: -20.9 °C to water at 38.3 °C. becfic heat capacities: ce = 2.108 J/g.°C water = 4.184 J/g.º℃ eat of…

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Q: Calculate the amount of heat needed to change 875.0 g of water at 35.0 °C to steam at 128.0 °C. Cp…

A: The heat required to change the state from temperature  T1 to T2 is ; Q=mc∆Tm=mass of substance…

Q: Two 20.0 g ice cubes at -18.0 C are placed into 225 g of water at 25.0 'C. Assuming no energy is…

A: Given: Two 20.0 g of ice mass = 20.0 + 20.0 = 40.0 g Then number of moles of ice or water is, =…

Q: What quantity of heat (in J) would be required to convert 6.91 mol of a pure substance from a liquid…

A: Information about the question

Q: How much heat is required to vaporize 35.8 gg of water at 100 ∘C∘C? (ΔHvap(H2O)=40.7kJ/mol

A: The amount of energy required to vaporize water to vapor is defined as latent heat of vaporization.…

Q: Octane(C8H18) is a hydrocarbon found in crude oil. Thermochemical data for octane is provided below.…

A: The phase of a substance changes when external energy or heat is provided to it. The value of…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.