At 1 atm pressure the heat of sublimation of gallium is 277 kJ/mol and the heat of vaporization is 271 kj/mol. How much heat is required to melt 0.500 mol of gallium at 1 atm pressure?

Q: Calculate the energy needed to convert 400. g of ice at -50.0 °C to steam at 180.0 °C. The heat of…

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Q: Calculate the heat required to completely convert 8.25 g of solid benzene (heat of fusion 9.92…

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Q: a) What is the heat of vaporization of carbon tetrachloride, in kJ?

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Q: 1. Which of the following would have the highest molar heat of vaporization? a. I2 b. Br2 c. Cl2 d.…

A: The enthalpy change associated with the conversion of 1 mole of a liquid into its vapors at its…

Q: If the vapor pressure is 0.75atm at 55 degrees C, what is the vapor pressure at 95 degrees C? Heat…

A: Since the relationship between vapour pressure and temperature is given by where P2 = vapour…

Q: Calculate the energy needed to convert 300. g of ice at -50.0 °C to steam at 220.0 °C. The heat of…

A: Given data,Mass of ice=300gInitial temperature=-50oC=-50+273=223KFinal…

Q: What amount of heat is required to convert a 1.5 kg block of ice at -15.0°C to steam at 150.0°C?…

A: Given: Mass of ice = 1.5 Kg = 1500 g                              (Since 1 Kg = 1000 g) Initial…

Q: How much energy in kJ would it take to heat up 34.823 g of water at 47.8 degrees C until it…

A: Mass of water = 34.823 gm  Moles of water = 34.823/18 = 1.94 moles  Initial temperature = 47.8°C…

Q: How much heat in kilojoules is required to warm 10.0g of ice, initially at -10°C, to steam at 110°C?…

A: Given that: mass of ice = 10 g initial temperature = -10°C final temperature = 110°C Specific heat…

Q: What amount of heat is required to convert a 1.5 kg block of ice at -15.0°C to steam at 150.0°C?…

A: Given, mass of block of ice = 1.5 kg =1500 g

Q: The heat of vaporization of hexane is 30.8 kJ. mol-1. The boiling point of hexane at a pressure of…

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Q: How much heat is evolved in converting 1.00 mol of steam at 135.0 ∘C to ice at -55.0 ∘C? The heat…

A: To determine evolved heat:The formula to calculate heat for cooling three phases where it changes…

Q: A 0.488 mol sample of liquid propanol (60.09 g/mol) is heated from 25.7°C to 329.2C. The boiling…

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Q: How much heat (in kJ) is required to warm 10.0 g of ice, initially at -10.0 °C, to steam at 110.0…

A: SOLUTION: Step 1: The 10 g of ice t -10 0C to steam at 110 0C requires the following conversions:

Q: Acetone has a vapor pressure of 286.5 mm Hg at 25°C and a normal boiling point of 56.2°C. What is…

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Q: A 0.186 mol sample of liquid propanol (60.09 g/mol) is heated from 24.4°C to 324.9°C. The boiling…

A: Answer: Heating of liquid propanol is a 3 step process: 1. Heating of liquid propanol up to its…

Q: A liquid “X" has a normal boiling point of 75 °C. What will be the approximate boiling point of the…

A: Since you have posted a question with multiple questions, we will solve first question for you. To…

Q: calculate the amount of heat needed to voporize 25.0 of water at 100 C. the heat of vaporization…

A: Heat of vaporization is defined as the amount of heat required at a particular temperature to…

Q: The vapor pressure of acetic acid, CH3COOH, (l) at 320.9 K is 155.0 mm Hg. What is the heat of…

A: The vapor pressure of a liquid is the pressure exerted by the vapor of a liquid when the gas and the…

Q: Which substance exhibits stronger attractive intermolecular forces?  SiF4  SiCl4 Which substance has…

A: Thus for vaporization, higher temperature is required for the silicon tetrachloride rather than…

Q: How much energy is required to melt 135 grams of frozen ethanol? Ethanol heat of vaporization is…

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Q: At 1 atm pressure, the heat of sublimation of gallium is 277 kJ/mol and the heat of vaporization is…

A: Given  pressure = 1 atm Heat of sublimation of Ga = 277 KJ/mol Heat of Vaporisation of Ga = 271…

Q: Methane (CH4) has a boiling point of −164°C at 1.00 atm and a vapor pressure of 42.8 atm at −100°C.…

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Q: Calculate how much energy, in kJ, is required to melt a 25.00 g ice cube, that has an initial…

A: The melting point of the ice cube is 0o C. The total energy, required to melt the ice, is calculate…

Q: a. Calculate the heat required to melt 5.87 g of benzene at its normal melting point. Heat of fusion…

A: Molar mass of benzene is 78.11 g/mol Find moles of benzene present in 5.87 g of benzene =5.87 g of…

Q: A 0.439 mol sample of liquid propanol (60.09 g/mol) is heated from 25.6°C to 328.3PC. The boiling…

A: Answer: This is a three step process 1. Heating of liquid propanol to its boiling point 2. Phase…

Q: How much energy (in kJ) is needed to convert 50.0 g of ice at -10.0 ºC to liquid water at 0.0 ºC?

A: M=50 gm=0.05kg  we raise the temperature of 0.05kg of ice at -10C to 0C. The heat capacity of ice,…

Q: what quantity of heat would be required to vaporize 2.30g of aluminum at its normal boiling point?

A: the answer is follows as :

Q: What amount of heat is required to convert a 1.5 kg block of ice at -15.0°C to steam at 150.0°C?…

A: Given the mass of ice block, m = 1.5 Kg = 1.5 Kg * 1000 g1 Kg= 1500 g The required constant values…

Q: A liquid has a delta Hdegreesvap of 32.9kJ / mol and a boiling point of 123 degreesC at 1 atm. What…

A: Given : delta H =  32.9kJmol-1 T1  = 1230C = 396K T2  = 1100C = 383K P1 = 1atm

Q: The chlorofluorocarbon C2Cl3F3 has a normal boiling point of 47.6 ºC.  The specific heats of liquid…

A: Answer of the question given below,

Q: How much ice (in grams) would have to melt to lower the temperature of 351 mL of water from 26 oC to…

A: Given,Volume of water = 351mL.Initial temperature = 260C.Final temperature = 40C.

Q: calculate the amount of heat in kilojoules needed to convert 95.65 grams of ice at 0.00 degree…

A: Introduction :  We have to calculate total heat needed in this process .

Q: A certain substance has a heat of vaporization of 65.99 kJ/mol. At what Kelvin temperature will the…

A: When a temperature of a liquid increases its vapor pressure increases significantly more rapidly…

Q: What is the heat of vaporization(kj/mol) if it takes 3452 J of heat to completely vaporize 2.68…

A: Consider the given information is as follows; Heat of vaporization = 3452 J = 34521000 kJ=3.452 kJ…

Q: A total of 537 cal of heat is added to 5.00 g of ice at -20.0 °C. What is the final temperature of…

A: Given data :  Mass of ice = 5.00 g  Initital temperature of ice = -20.0°C Total heat added = 537 cal…

Q: The heat of fusion for naphthalene is 0.148 kJ/g. Calculate the heat energy in joules required to…

A: Given: Heat of fusion for naphthalene = 0.148 KJ/g Mass of naphthalene = 43.25 g

Q: How much heat energy is required to melt 858.3 g of HBr? The molar heat of fusion of HBr is 2.41…

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Q: Calculate the total quantity of heat required to convert 25.0 g of liquid CCI4() from 25.0°C to…

A: Given: The specific heat of CCl4 (l) = 0.857 J/(g . oC) The heat of vaporization = 29.82 kJ/mol We…

Q: The vapor pressure of a certain liquid is 39mmHg at a temperature of 10°C. If its heat of…

A: Given :  Initial temperature (T1) = 10°C = 283 K  Vapour pressure at 10°C (P1) = 39 mm Hg  Final…

Q: What amount of heat must be added to melt 54.06 g of ice at 0 °C and increase the temperature to…

A: Since the ice is initially at 0 oC. Hence it will need energy to just melt at 0 oC. And once the ice…

Q: The heat capacity of liquid water is 4.18 J/g-°C and the heat of vaporization is 40.7 kJ/mol. How…

A: Given data,  Heat capacity of liquid water (s) = 4.18 J/g.°C  Heat of Vaporization(∆Hvap) = 40.7…

Q: The heat of fusion for CO2 is 8.35 kJ/mol. How much heat is needed to melt 2g of CO2?

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Q: 6. What phase change will occur if the temperature is lowered from 80°C to -5°C at 1 atm? 7. You…

A: Answer is below

Q: How much heat (in kJ) is required to warm 13.0 g of ice, initially at -10.0 ∘C, to steam at 109.0…

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Q: certain substance has a heat of vaporization of 52.85 kJ/mol. At what Kelvin temperature will the…

A: Given-> Heat of vaporization (∆Hvap) = 52.85 KJ/mole ∆Hvap = 52850 J/mole T1= 287 K P1=P  P2 = 3…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.