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You could calculate the molar heat of sublimation as long as you know by placing a known amount of a known quantity in a calorimeter and measuring the change in temperature during sublimation. Then use the equation E=mc(change in T) where E is energy in joules, m is mass, c is heat capacity, and T is temperature.
What else can I help you with?
The molar heats of sublimation and fusion of iodine are 62.3kjmol and 15.3kjmol respectively calculate the molar heat of vaporization of liquid iodide?
It is a known fact : Molar heat of sublimation = molar heat of fusion + molar heat of vaporization so, molar heat of vaporization = molar heat of sublimation - molar heat of fusion Mv = 62.3 kJ/mol - 15.3 kJ/mol Mv = 47 kJ/mol.
When 1 gram of zinc chloride ZnCl2 is dissolved in water the heat evolved is 0.53kJ Calculate the molar heat of substance of solution of zinc chloride?
To calculate the molar heat of solution of zinc chloride, we use the heat evolved by dissolving 1 gram of ZnCl2 in water. First, we convert the mass of ZnCl2 to moles using its molar mass of 136.3 g/mol. Then, we divide the heat evolved by the number of moles dissolved to get the molar heat of solution. In this case, the molar heat of solution would be 3.89 kJ/mol.
What is molar heat?
Different substances have varied molar heat capacities. The molar heat capacity of a substance refers to the amount of heat energy needed to raise 1 mole of that substance by 1 degree Celsius.
What is the difference between heat of reaction and molar heat of reaction?
Heat of a reacion is the totall amount of heat a reaction produces. Molar heat of a reaction is the heat produced/mol if you have the molar hear of the reaction you can calculate the heat of the reaction based on the moles of reactants you have
When carbon disulfide is formed from its elements heat is absorbed Calculate the amount of heat in kJ absorbed when 5.66g of carbon disulfied is formed?
The molar mass of carbon disulfide (CS2) is 76.14 g/mol. To calculate the moles of CS2 in 5.66 g, divide the mass by the molar mass: 5.66 g / 76.14 g/mol = 0.074 moles. Since heat is absorbed when CS2 is formed, we know this process is endothermic. You will need to know the molar enthalpy of formation (ΔHf) of carbon disulfide to calculate the amount of heat absorbed.
The molar heats of sublimation and fusion of iodine are 62.3kjmol and 15.3kjmol respectively calculate the molar heat of vaporization of liquid iodide?
It is a known fact : Molar heat of sublimation = molar heat of fusion + molar heat of vaporization so, molar heat of vaporization = molar heat of sublimation - molar heat of fusion Mv = 62.3 kJ/mol - 15.3 kJ/mol Mv = 47 kJ/mol.
How do you calculate the molar heat of fusion?
Use Einstein's Theory of Special Relativity
When 1 gram of zinc chloride ZnCl2 is dissolved in water the heat evolved is 0.53kJ Calculate the molar heat of substance of solution of zinc chloride?
To calculate the molar heat of solution of zinc chloride, we use the heat evolved by dissolving 1 gram of ZnCl2 in water. First, we convert the mass of ZnCl2 to moles using its molar mass of 136.3 g/mol. Then, we divide the heat evolved by the number of moles dissolved to get the molar heat of solution. In this case, the molar heat of solution would be 3.89 kJ/mol.
What is molar heat?
Different substances have varied molar heat capacities. The molar heat capacity of a substance refers to the amount of heat energy needed to raise 1 mole of that substance by 1 degree Celsius.
What is the difference between heat of reaction and molar heat of reaction?
Heat of a reacion is the totall amount of heat a reaction produces. Molar heat of a reaction is the heat produced/mol if you have the molar hear of the reaction you can calculate the heat of the reaction based on the moles of reactants you have
How do you figure out molar heat of combustion of phenol at 25 degrees celsius?
The molar heat of combustion of phenol can be calculated by measuring the heat released when a known amount of phenol is completely burned in a calorimeter. The heat released is then used to calculate the molar heat of combustion using the mass of phenol burned and the molar quantity of phenol. This calculation can be done using the formula: heat released = molar heat of combustion x moles of phenol.
When carbon disulfide is formed from its elements heat is absorbed Calculate the amount of heat in kJ absorbed when 5.66g of carbon disulfied is formed?
The molar mass of carbon disulfide (CS2) is 76.14 g/mol. To calculate the moles of CS2 in 5.66 g, divide the mass by the molar mass: 5.66 g / 76.14 g/mol = 0.074 moles. Since heat is absorbed when CS2 is formed, we know this process is endothermic. You will need to know the molar enthalpy of formation (ΔHf) of carbon disulfide to calculate the amount of heat absorbed.
What are affected by an increase in intermolecular forces?
Capillary attraction, Melting point, Heat of vaporization Sublimation temperature, Surface tension, Vapor pressure, Heat of fusion Boiling point, Viscosity, Density, Heat of sublimation Apex: Boiling point, viscosity, heat of sublimation, density.
How do you calculate the molar enthalpy of combustion?
To calculate the molar enthalpy of combustion, you need to measure the heat released when one mole of a substance is completely burned in oxygen. This can be done using a calorimeter to measure the temperature change and applying the formula: H q/moles.
What is the specific heat of an unknown substance if 2000 j of energy are required to raise the temperature of 4 grams of the substances 5 degrees celsius?
You cannot calculate the specific heat without knowing the molar mass of the substance in question. Units of specific heat are given in joules/mol, with no reference to molar mass there is no way to calculate the number of moles of substance being heated.
Is heat taken away or added in sublimation?
Sublimation is an endothermic physical change (heat is needed).
What is the experimental molar heat of combustion?
The experimental molar heat of combustion is the heat released by the total combustion of a substance, determined in a calorimeter.
