What quantity of heat, in kJ, is required to convert 13.0 g of ethanol (C2H5OH) at 23.0°C to a vapor at 78.3°C (its boiling point)? (specific heat capacity of ethanol = 2.46 J/g C; AHvap = 39.3 kJ/mol) %3D

Q: A sample of ice been vaporized. Create the equation for the total heat required for this process by…

A: The heat changes during a phase conversion can be calculated using the following equation-ΔH is the…

Q: 13. A sample of ice at 0°C melts after absorbing 300,000J of heat. How many moles of H,0 are…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: How much heat (kJ) is required to convert 1.000 grams of H2O(l) at 25.0 oC to H2O(g) at 100.0 oC?…

A: Given mass of water = 1 g T1 = 25°C T2 = 100°C C = 4.18 J/g.°C ΔH = 44 kJ/mol ΔT = T2 - T1…

Q: The heat required to increase the temperature of 50.0 g H₂O(l) from 25.0 °C to 45.0 °C is (Data for…

A: Heat is defined as the is the form of energy that is transferred between systems or with different…

Q: The heat capacity of liquid ethanol is 2.45 J/g-deg C. How much heat do you need to add to 100 g of…

A: Given: Specific heat capacity of ethanol = 2.45 J/g⋅ oC Mass of ethanol = 100.0 g Initial…

Q: 4) The table below contains thermodynamic values for water (H20) and for methane (CHA). Water…

A: The enthalpy of fusion (∆Hf) is termed as the quantity of energy that must be supplied to convert…

Q: Suppose that 1.15 g of rubbing alcohol (propan-2-ol) evaporates from a 65.0 g aluminum block. If…

A: Given, Mass of alcohol evaporate = 1.15 g Mass of Aluminum block = 65.0 g Initial heat of the block…

Q: Temperature

A:

Q: What amount of heat energy is needed to warm 4.00 grams of H2O (ℓ) by 25°C?

A: Specific heat is the amount of heat energy required to raise the temperature of substance by 1°C ,…

Q: How much heat (in kJ) is absorbed in the process of making 0.951 mol of CF₄ from the following…

A: Given  C(s)  + 2 F2(g)      →  CF4(g)       ∆H0  = 141.3 KJ/mole  For 0.951 mole of CF4  , Heat…

Q: Consider the reaction: 2Al2O3 (s) yields 3O2 (g) delta H = 3351.5 kJ  A) what is the heat formation…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Calculate the kinetic energy, in J/mol, of 1.00 mol of gaseous water molecules at the boiling point…

A:

Q: What is the minimum amount of energy required to heat 145 grams of water to the boiling point of…

A:

Q: 4) What is the total enthalpy change ( in kJ) during the process in which 36.1 g of ice at -17.3 °C…

A: We need to convert 36.1 g of ice at -17.3 .C  to 36.1 g of water at 0 .C .   Total change in…

Q: At a certain elavation, the boiling point of water is 98.5C. How much energy, in kilojoules, is…

A: Heat energy needed,Q= 11.0 KJ

Q: How much heat (in kJ) is absorbed in the process of making 0.785 mol of CF₄ from the following…

A: Calculation  of Heat absorbed

Q: Carbon disulfide, CS2, is a colorless, toxic, highly volatile, and flammable liquid. What is the…

A: Given, CS2(l) ➝ CS2(g) ; ∆H° = ? ∆Hf°[CS2(l)] = 89.7 kJ/mol ∆Hf°[CS2(g)] = 116.9 kJ/mol Heat of…

Q: It requires ____ kJ of heat to boil 7.5 grams of methanol (CH3OH) at its boiling point. The ΔHvap of…

A: We need to calculate amount of heat required to boil given quantity of methanol at its boiling…

Q: A 450 g H2O is heated from 10.5oC to 80.0oC. Calculate the amount of heat absorbed (in kilojoules)…

A: We have to predict the amount of heat absorbed.

Q: What quantity in moles of H₂ are required to give off 2801 kJ of heat in the following reaction? N₂…

A: Here we have to determine the moles of H2 gas required to produce 2801Kj of heat in the following…

Q: A 65.5 gram piece of glass (c 0.840 J/g C) is heated to 177"C and dropped into a beaker containing…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the heat change (qtotal) in kilojoules, when 26.4 g of water are warmed from 25.0oC to…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: How much energy (in kJ) is released when 20.00

A: Amount of heat energy released or absorbed during a chemical reaction is called " heat of…

Q: 32. How much heat (in kJ) is absorbed in the process of making 0.813 mol of CF₄ from the following…

A: The answer to both the questions are given as:

Q: What is the final temperature when a 5.0 g sample of brass initially at 25 oC absorbs 75 J of heat?…

A:

Q: Use the information provided to calculate the quantity of heat (in kJ) required to convert 70.8936 g…

A: The schematic diagram of the phase transition is given below,

Q: 14) 500.0 mL of steam (density = 0.589 g/L) at 100.0°C is mixed with 5.000 mL of liquid mercury…

A: Volume of steam = 500.0 mLDensity of steam = 0.589 g/LInitial temperature of steam = 100oCVolume of…

Q: How many joules of energy are absorbed when 36.2 grams of water is evaporated?  ΔHfus = 6.01 kJ/mol…

A: Heat of vapourization is define as the amount of energy is needed to boil I mole of substance at…

Q: 12.) A 36.0 g sample of liquid water at 100.0°C is heated to 145.0 C. How much heat does the water…

A: Given: mass of liquid water = 36.0 g Initial temperature of water = 100 oC Final temperature of…

Q: A 444.3 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A: We are changing the sample from solid to liquid. During this process, energy is supplied in three…

Q: A 31.72 g31.72 g sample of a substance is initially at 21.0 °C.21.0 °C. After absorbing 1895 J1895 J…

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

Q: energy

A:

Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

A:

Q: ) Calculate the number of moles of carbon disulfide that will be vaporized if 6.70 kJ of heat are…

A: Enthalpy of vaporization :-  The amount heat required to convert 1 mol of a liquid substance into…

Q: When a 4.80 grams of CsOH is dissolved in 100.0 grams of water, the temperature of the solution…

A: Given : mass of CsOH dissolve = 4.80 g And mass of water = 100.0 g

Q: A 1.00 g sample of MgCl2 produced a 10.00 °C increased in a calorimeter charged with 40.0mL of…

A: Mass of MgCl2 = 1.00 g Increase in temperature, ΔT = 10.00 °C Specific heat of MgCl2, C = 0.750…

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

A:

Q: A 450 g H2O is heated from 11.5oC to 81.0oC. Calculate the amount of heat absorbed (in kilojoules)…

A: Given, Mass of water heated (m) = 450g Initial temperature (Ti) = 11.5oC Final temperature (Tf) =…

Q: Calculate the quantity of heat is absorbed when 7.01 grams water warms from -25 °C to 85 °C…

A: The heat change is calculated in the following steps: Heat change during the increase of temperature…

Q: How much energy is required to vaporize 89.5 g of ethanol (C2H5OH) at its boiling point, if Hvap =…

A: To find the energy required to vaporize a given mass of ethanol (C2​H5​OH), we can use the heat of…

Q: How much heat energy is required to boil 78.8 g of ammonia, NH, ? The molar heat of vaporization of…

A: We will first calculate moles of NH3 then find heat required to boil it.

Q: Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization=25.00…

A:

Q: How much heat energy is required to boil 66.7 g of ammonia, NH3? The molar heat of vaporization of…

A: Mass of NH3 = 66.7 g  Molar heat of vaporization = 23.4 KJ/mol

Q: Calculate the heat required to bring 10.0 g CCl2F2 from -29.8 °C as a liquid to the gas phase at…

A: It is given that 10 g of CCl2F2 is at -29.8°C initially that is its boiling point and is change into…

Q: Based on the thermodynamic properties provided for methanol (below), select from the following list…

A: Given : Mass of methanol = 5.0 Kg = 5000 g Initial temperature of methanol = -64 oC Final…

Q: What amount of heat, in kJ, is required to vaporize 198.00 g of ethanol (C2H5OH)? (AHvap = 43.3…

A: Interpretation: The amount of heat required to vaporize 198 g ethanol, is to be determined.

Q: How much heat energy is required to boil 23.0 g of ammonia, NH,? The molar heat of vaporization of…

A: Given data: The mass of ammonia m= 23.0 g. The molar heat of vaporization of ammonia = 23.4 kJ/mol.…

Q: How much energy is required to heat 450 g of water from 20°C to 100°C? (C = 75.291 J/mol•K for H20;…

A: We know that  q = m × C ×  ΔT Where  q = heat absorbed or released m = mass of reactant C =…

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.