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

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 change in kilocalories for vaporization of 49 g of water at 100° C.

A: We know:

Q: The main reason that distillation is a costly method for purifying water is the high energy required…

A: Distillation is the process in which the components of a mixture are separated on basis of different…

Q: How much heat is emitted when 4.25  g  of water condenses at 25  ∘C ? The heat of vaporization of…

A:

Q: How much heat would need to be removed to cool 29.5 g of water from 25.6°C to -10.7°C? Csolid =…

A: We have to predict the amount of heat removed from the water to have given temperature change.

Q: How much heat would need to be removed to cool 50.3 g of water from 25.6°C to -10.7°C?

A:

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: A solid being heated stays at a constant temperatureuntil it is completely melted. What happens to…

A: During melting of solid, heat energy is converted into latent heat required only and temperature of…

Q: How much energy does it take to turn 10g of liquid water into a gas at the boiling point? Heat of…

A: Given data : Mass (m) = 10 g Heat of vaporization (ΔHvap ) = 540 cal/g

Q: How much energy is required to vaporize 188 g of butane (C4H10) at its boiling point, if its ΔHvap…

A: Enthalpy of evaporation is defined as the energy required to change an amount of substance from…

Q: How many grans of liquid CFCu are needed to cool 226 gof water from 49.9 to 205 C? The specific heat…

A:

Q: How many kilojoules of heat energy are required to melt 200. g of ice at its freezing point?

A:

Q: how much heat in joules is absorbed when 35.6 g of ice melts?

A: When a solid heated at its melting point it converts into the liquid state. The energy absorbed in…

Q: How much heat is required to convert 135 g of ice at -15 °C into water vapor at 120 °C?

A: Given,  Mass of ice = 135 g  Initial temperature = Tinitial = -15 0C  Final temperature = Tfinal =…

Q: How many joules of heat are required to melt 4.5 g of copper at a temperature of 1083°C? Use the…

A:

Q: Assuming that no heat is lost to the surroundings, what is the temperature of the entire water…

A: Given thatMass of ice = 24.0 gInitial temperature of ice = 0.00oCMass of water = 600.0 g Initial…

Q: How much energy is needed to cause 5.0x104 g of ice to heat from -40 C to its melting point and then…

A: Matter around us exist in mainly three states, that is solid, liquid and gas. The matters change…

Q: ind molar heat of fusion for ice

A: According to first law of thermodynamics,the total energy of a system remains conserved.If one…

Q: A 250. g sample of water at the boiling point (100 ̊C) had 50.2 kJ of heat added. How many grams of…

A:

Q: A coffee pot contains 310 grams of water at 100oC. How many calories of heat are required to…

A:

Q: A 43.70 g sample of solid magnesium is initially at 632.00°C. If the sample is heated at constant…

A: Required information: Specific heat capacity of Mg = 1.020Jg°C Formula used:…

Q: The heat of fusion for gallium is 5.59 kJimol How much heat in kJ is required to vaporize 55.0 g of…

A:

Q: How many calories are required to heat the substance below?   71.4 g of ice from -77.0oC to…

A: Mass = 71.4 g  Initial temperature (T1) = -77.0 °C   Final temperature (T2) = -5.00 °C  Heat…

Q: How much energy is needed to vaporize 75.0 g of diethyl ether (C,H O) at its boiling point (34.6…

A: Given Mass of diethyl ether = 75g ΔHvap = 26.5 kJ/mol

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: Calculate the amount of heat required to raise the tempature of 20.0g of water from -21.0C to 16 C

A: Given that,  Amount of water m = 20.0 g Change in temperature ∆T= 16°C  -  (-21°C)      = 37 °C Heat…

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: How much heat would need to be removed to cool 81.5 g of water from 25.6°C to -10.7°C?

A: Given that:  Mass of water (m) = 81.5 g  Initial temperature (T1) = 25.6°C Final temperature (T2) =…

Q: How much heat is required to change 600. g of liquid mercury to gaseous merouty at the boiling?

A: To calculate the heat required to change the liquid mercury to gaseous mercury at its boiling…

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 heat a 60.5 gram sample of ice from -35.0°C to steam at 115°C?

A: This question can be solved by simply measuring the heat change in each transition in the given…

Q: How much energy is absorbed or released when 2.30 moles of water (4.184 J/g°C) cools from its normal…

A: Given: Moles of water = 2.30 moles. Specific heat capacity of water = 4.184 J/g C∘. We have to find…

Q: Consider

A: Enthalpy of vaporisation is heya realease when liquid convert into gas

Q: Calculate the heat change in joules for melting 12.0 g of ice at 0 ∘C

A:

Q: How much heat is released when 25.0 grams of water at 25.8 degrees C changes to ice at -14.5 degrees…

A: We determine the heat evolved in a temperature change by the formula= ∆H = m x s x ∆T where m is…

Q: 3. How much energy would be needed to vaporize 2.8 g of water?

A: nwater = mass/ molar mass = 2.8/18 = 0.155 mol

Q: Calculate the heat change in kilojoules for melting 5.00 kgkg of ice at 0 ∘C∘C.

A: Given that 5.00 kg of ice has to be melted.The enthalpy of fusion for water is 334 J g-1.

Q: Calculate the joules released when 175 g of the steam condenses at 100 ∘C and the liquid cools to…

A:

Q: Which phase change involves the absorption of heat?

A: A phase change is occured when a matter changes from one state to another state. The possible states…

Q: How much energy is released when 75.3 g of water vapor at 115 °C condense and cool to liquid at 25.0…

A: Given that : Mass of water (m) = 75.3 g Initial temperature = 115°C Final temperature = 25.0 °C The…

Q: Determine the amount of heat, in kJ, required to heat 19 g of solid Ca at 125 C to 851C (still…

A: Given; mass, temperatures

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: what mass of ice at 0 Celcius is needed to cool 150 g of water at 25 C to 0 C?

A:

Q: How much energy does it take to convert 75.0 g of ice at -30.0°C to water at 0.0°C?

A: Specific heat capacity: The amount of heat energy required to raise the temperature of 1 g of a…

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: How much energy is required to vaporize 188g of butane at its boiling point if it's Hvap is…

A: Number of moles of butane is calculated as follows,

Q: Calculate the heat change in kilojoules for freezing 30.0 g of water at 0 ∘C.

A: Heat change in freezing is equal and opposite of heat change in melting or heat of fusion (dHfus).…

Q: how much energy is required to vaporize 125 g of benzene c6h6 at its boiling point 80.1 C

A: Given, Mass of benzene =125 g Boiling point =80.1°C

Q: The melting point of calcium is 851 °C, its solid-state specific heat (Csolid) is 0.632 J/g°C, and…

A: a) Since at its melting point, the solid can be directly melted  hence the heat required will be  Q…

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.