Final answer:
To convert energy from kilocalories (kcal) to kilojoules (kJ), multiply the energy in kcal by the conversion factor 4.184. Therefore, in 1.0 hour, the burner will deliver 22593.6 kJ of energy.
Step-by-step explanation:
To convert energy from kilocalories (kcal) to kilojoules (kJ), we need to use the conversion factor: 1 kcal = 4.184 kJ. Given that the burner delivers 90 kcal of energy per minute, we can calculate the energy delivered in 1.0 hour.
First, we need to find the number of minutes in 1.0 hour:
1.0 hour = 60 minutes
Next, we can calculate the energy delivered in 1.0 hour:
Energy delivered in 1.0 hour = Energy delivered per minute x Number of minutes in 1.0 hour
= 90 kcal/min x 60 min
= 5400 kcal
Finally, we convert kcal to kJ:
Energy delivered in 1.0 hour = 5400 kcal x 4.184 kJ/kcal
= 22593.6 kJ