Recent questions and answers in ThermoChemistry

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What is the theoretical amount of heat required to desorb 5 grams of CO2 adsorbed on activated carbon if the enthalpy change for this process is -25 kJ/mol? (Assume complete desorption of CO2)

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the standard enthalpy of formation of methane (CH4) given the following bond dissociation energies (in kJ/mol): C-H = 413, C-C = 348, C=C = 614, C≡C = 837, H-H = 436?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the standard enthalpy change of solution of 3.5 g of sodium hydroxide (NaOH) in 50 mL of water at a constant temperature of 25 °C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the standard enthalpy change of dissolution for 5.00 grams of solid sodium hydroxide (NaOH) in 100.0 mL of water at 25°C? Given: The molar enthalpy of dissolution of NaOH is -44.51 kJ/mol and the density of water is 0.997 g/mL.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the specific heat capacity of a substance that requires 2510 J of energy to increase the temperature of a 50 g sample by 10 °C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the minimum amount of heat energy required to vaporize 50 grams of water at its boiling point, given the enthalpy of vaporization of water to be 40.7 kJ/mol?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to sublime 30 grams of dry ice (CO2) at a constant pressure of 1 atm? The heat of sublimation of CO2 is 25.2 kJ/mol.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to sublimate 55 grams of dry ice (CO2) at -78.5°C and atmospheric pressure? The heat of sublimation of CO2 is 25.2 kJ/mol.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to raise the temperature of 75 g of water from 25°C to 90°C? Given that the specific heat capacity of water is 4.18 J/g°C.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to raise the temperature of 50 grams of water by 10 degrees Celsius? The specific heat capacity of water is 4.18 J/g °C.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to raise the temperature of 50 grams of water by 10 degrees Celsius if the specific heat capacity of water is 4.184 J/g*C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat required to raise the temperature of 50 grams of water from 20°C to 50°C, given that the heat capacity of water is 4.184 J/g°C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat released or absorbed when 50 g of water freezes to ice at -10°C, given that the heat of crystallization for water is 6.01 kJ/mol?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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If 2.50 moles of propane react with excess oxygen gas, how much heat is released at constant pressure if the enthalpy change of the reaction is -2044 kJ/mol?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of sublimation of iodine, given that it has a vapor pressure of 10 mmHg at -10°C and a normal boiling point of 184.35°C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of sublimation of dry ice (CO2) when 60 grams of it is sublimated at a constant pressure of 1 atm? The initial temperature of dry ice is -78.5°C and its final temperature is -56.6°C.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of sublimation of carbon dioxide (CO2) if 50 g solid CO2 is completely converted into gas phase without changing the temperature and pressure conditions? Given: The molar heat of sublimation of CO2 is 25.2 kJ/mol.

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of sublimation for solid carbon dioxide (dry ice) if 100 grams of it sublimes at a constant pressure of 1 atm and absorbs 25.2 kJ of heat?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of neutralization for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) when 50 mL of 2 M HCl is mixed with 50 mL of 2 M NaOH in a calorimeter and the temperature increases from 25°C to 31°C?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the heat of neutralization of sulfuric acid (H2SO4) with sodium hydroxide (NaOH) at constant pressure if 50 mL of 2.0 M H2SO4 is reacted with 50 mL of 2.0 M NaOH?

answered Mar 1 in ThermoChemistry by TheScientist (138k points)

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