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If the enthalpy change for a reaction is +75 kJ for 2 moles, what is the enthalp

Practice Questions

Q1
If the enthalpy change for a reaction is +75 kJ for 2 moles, what is the enthalpy change per mole?
  1. 37.5 kJ
  2. 75 kJ
  3. 150 kJ
  4. 25 kJ

Questions & Step-by-Step Solutions

If the enthalpy change for a reaction is +75 kJ for 2 moles, what is the enthalpy change per mole?
  • Step 1: Identify the total enthalpy change for the reaction, which is +75 kJ.
  • Step 2: Identify the number of moles involved in the reaction, which is 2 moles.
  • Step 3: To find the enthalpy change per mole, divide the total enthalpy change by the number of moles.
  • Step 4: Perform the calculation: 75 kJ divided by 2 moles equals 37.5 kJ per mole.
  • Enthalpy Change – Understanding how to calculate the enthalpy change per mole from a total enthalpy change for a given number of moles.
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