Calculate the heat required to vaporize 102 g of water at a temperature of 100oC   if the Heat of Vaporization for water is 2258 J/g.

Q: For many years drinking water has been cooled in hot climatesby evaporating it from the surfaces of…

A: Since the heat required for the evaporation of 60 g of water is given by the rest of water by…

Q: What is the heat of vaporization for a liquid and why is it useful?

A: The vaporization is the transition process where liquid converted to vapor phase. The heat of…

Q: Calculate the heat required to vaporize 102 g of water at a temperature of 100oC   if the Heat of…

A: The process of conversion of a substance in its liquid state into its gaseous state is called…

Q: How much energy is released when 75.3 g of water vapor at 115 degrees C condense and cool to liquid…

A: We know ,energy released HH = m×S× ( tf − ti ) Where H = heat m = mass in gramsS=Specific Heat…

Q: How much energy is needed to boil 45.0g of water at its boiling point? Water's heat of vaporization…

A: Given: Mass of water = 45.0 g. And heat of vaporization of water = 40.65 KJ/mol.

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A:

Q: Calculate the heat needed to raise the temperature of 20 g of the substance from -70°C to 20°C.…

A:

Q: Water has a molar heat capacity of 75.38 J/(mol  ×  °C) and its vaporization enthalpy at 100°C is…

A: The amount of heat which is required to increase the temperature of one mole of a substance by one…

Q: How many joules of energy must be removed from 172 g of water at 27.1 °C to form ice at 0 °C?

A: Specific heat of substances.

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: What mass of steam initially at 130 °C is needed to warm 200. g of water in a 100. g glass container…

A:

Q: The heat of vaporization of a liquid is 1344 J/g. What is the minimum number of joules needed to…

A: Given Mass = 40 g Heat of vaporization = 1344 J

Q: The heat of vaporization of water is 40.66kl/mol. How much heat is absorbed when 2.98g of water…

A: Heat of vaporization is amount of heat which converts water from liquid state to the vapour phase.…

Q: A 221.0 g sample of water at 24.5°C is heated to steam at 139.0°C. How much heat was absorbed?

A:

Q: NH3, NHF2, NF3  which has the highest enthalpy of vaporization? Which has the highest vapor…

A:

Q: Given 352 mL of water at 26 °C in a perfectly heat-insulating container, how much ice at 0 °C (in…

A: M

Q: How much heat (in joules) must be added to change 20.0g of H2O(s) at -10 degrees C to steam at 110…

A: Heat for changing the state of water from ice at – 10 C0 to 0 C0 can be determined as:Q1 = m s dT=…

Q: The heat of fusion of water is 79.9 Cal/G. How much heat would be required to melt 75.9 G of ice?

A: Given: Mass of ice, m =75.9  g The heat of fusion of water =79.9 Cal/g

Q: What is quantity of heat (in KJ) associated with cooling 212.7 g of water from 25.60 C to ice at…

A:

Q: A 30.0 gram solid substance melts fully at 5.4 degrees celsius when it absorbs 3.8 kJ of heat. What…

A: Given : mass of solid melting = 30.0 g And heat absorbed = 3.8 KJ = 3800 J…

Q: turning into vapor at its boiling point100°C) associated with 85 g of water

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

Q: How much heat is required to vaporize 100.0 g of ethanol

A: Number of moles = mass ÷ molar mass  Molar mass of ethanol is 46.07 g/mol

Q: When 4.61 grams of ice at – 20°C have absorbed 2500 calories of heat, what is the temperature of the…

A: Latent heat is the amount of energy that is required by a phase to convert itself from solid to…

Q: Water has a vaporization enthalpy of 2256 J/g, making it the largest of any molecular substance. For…

A: The enthalpy of vaporization depends on the intermolecular forces present between the molecules

Q: For a 7.48 gram sample of water at 0.63°C , what is the minimum amount of heat (in kJ) needed to…

A:

Q: Suppose 1.0 x 102 grams of ice absorbs 1255 J of heat, reaching a final temperature of -2.0°C.  What…

A:

Q: The heat of fusion of pure silicon is 43.5 kJ/mol. How much energy would be needed to melt a 5.24-g…

A: Mass of silicon= 5.24g MOLAR mass = 28g/mol Mole= mass÷molar mass=  5.24÷28= 0.18mole 1 mole Si…

Q: How much heat energy is needed to heat and then completely melt a 6.00 gram solid gold ring at an…

A: The required amount of energy from a solid state to the liquid state can be determined by the…

Q: How much heat is required to vaporize 2.31 mol of methane, CH¼, at its boiling point? The heat of…

A:

Q: A 100.0-mL sample of water is heated to its boiling point. How much heat (in kJ) is required to…

A: Density of water = 1.00 g/mL Volume of water = 100 mL Heat of vaporization of water = 40.7 kJ/mol…

Q: Determine the heat in joules to melt 52.75 moles of water given the heat of fusion is 6010 J/mol?

A: Heat of fusion is the amount of energy required for melting a given mass at its melting point…

Q: How many joules of energy must be removed from 131 g of water at 14.5 °C to form ice at 0 °C? How…

A:

Q: How much heat is necessary to change 565 g of ice at -5°C to water at 20°C?

A: Given,Mass of ice = 565g.Initial temperature = -50C.Final temperature = 200C.

Q: A 193.1 g sample of water at 21.2°C is heated to steam at 131.5°C. How much heat was absorbed?

A:

Q: How much energy is required to melt 553 g553 g of ice into liquid water at 0 degrees Celsius? 0…

A:

Q: The heat of fusion for sea ice is 79.70 cal/g. How many calories of heat are needed to melt a 35.00…

A:

Q: How much heat is required to convert 20.0g of ice at -50.0 degrees C to liquid water at 0.0 degrees…

A: Heat in kilojoules can be calculated using the specific heat capacity, temperature difference and…

Q: Caculate the mass of water that can be vaporized at its boiling point with 200kj of heat

A: The moles of water that can be vapourised is determined first by using the given heat value and the…

Q: How much energy is required to melt 393 g of ice into liquid water at 0 C? The heat of fusion for…

A: Heat of fusion = 333.6 J/gMass of ice = 393 gprocess of fusion is Ice(s , 0 °C)  → ice (l,  0°C)

Q: calculate how much heat in kilojoules is absorbed by 948.0 g of liquid A in order for the…

A: Given, mass of liquid =948.0 gspecific heat of liqiud =4.186 Jg.°Cinitial temperature =20.00°Cfinal…

Q: 8. The heat of vaporization of benzene (C2H6) is 568 J/g. How much energy is needed to vaporize 4.5…

A: Chemical formula of benzene is C6H6. Mass of 4.5 moles of benzene = moles x molar mass = 4.5 x 78 =…

Q: How much energy is required to melt 553 g553 g of ice into liquid water at 0 ∘C?0 ∘C? The heat of…

A: Total energy required= mXL m= mass of ice = 553g L=heat of fusion= 333.6 J/g

Q: How much energy is required to melt 357 g of ice into liquid water at 0 °C? The heat of fusion for…

A: We can answer this question using the equation, Q = Lice × m Q is  the amount of heat required to…

Q: Calculate the heat released when 65.5g of water at 55.5 ° C cools to ice at 0.0 ° C. (Given that the…

A: Here we are required to find the heat energy released during freezing process

Q: How much energy must be supplied to convert 125g of ice at 0 degrees celcius to 125g of water at 91…

A: We will be using two types of heat in the whole process:   Q1  = Heat required to convert the ice at…

Q: What's the heat change in Joules for vaporization of 9.00g of water at 100 degrees celcius

A: Heat of vaporization of water is 2256 J/g.Thus, when 1 mol of water is vaporised, 2256J/g heat is…

Q: How much energy is required to vaporize 250 g of water at its boiling point?

A: The energy required for the vaporization of water can be calculated from the standard value of the…

Q: Calculate the heat change in joules for vaporization of 9.00 g of water at 100 ∘C.

A: Heat of vaporisation of water is 2256 J/g/0C.Thus, when 1 mol ( 18 g) of water is vaporised, 2256…

Q: Calculate the heat change in calories for condensation of 13.0g of steam at 100 degrees

A: Given : Mass of steam = 13.0  Since condensation is a process in which the steam loses its latent…

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.