How do I calculate the amount of heat will be required to make 100.0kg of a compound, the molar enthalpy is -63kj/mol for the same compound
You need the molar mass of the compound if that is the molar enthalpy of formation of the compound.
100,000 g/molar mass = ? mols compound.
What reaction is that -63 kJ/mol for?
To calculate the amount of heat required to make 100.0 kg of a compound with a molar enthalpy of -63 kJ/mol, you need to follow these steps:
Step 1: Convert the mass of the compound from kilograms to moles.
- To do this, you need to know the molar mass of the compound. Let's assume the molar mass is M grams/mol.
- Use the formula:
Moles = Mass / Molar Mass
- So, in this case, to convert from kilograms to moles, you need to divide the mass (100.0 kg) by the molar mass in grams/mol.
Step 2: Calculate the heat required using the molar enthalpy.
- Since you have the moles of the compound, you can use the molar enthalpy to calculate the heat required.
- The formula to calculate heat (Q) is:
Q = Moles × Molar Enthalpy
- In this case, multiply the number of moles you calculated in Step 1 by the molar enthalpy (-63 kJ/mol).
Step 3: Convert the heat from kilojoules to joules if necessary.
- If you want the answer in joules, multiply the heat calculated in Step 2 by 1000 since there are 1000 joules in a kilojoule.
Following these steps will allow you to calculate the amount of heat required to make 100.0 kg of the compound.