Final answer:
To convert the calories burned by Chris in one hour of workout to watts, first translate the calories to joules and then divide by the number of seconds in an hour, which yields 731.6 watts. This suggests a calculation error in the original answers, as the exercise likely refers to kilocalories, not calories.
Step-by-step explanation:
To calculate Chris' wattage during his workout where he burns 630 calories in one hour, we need to convert calories to joules and then divide by the number of seconds in an hour. Since 1 calorie is equivalent to 4.184 joules, Chris burned 630 calories times 4.184 joules/calorie, which equals 2635.92 joules. There are 3600 seconds in an hour, so dividing the total joules by 3600 gives us the power in watts:
2635.92 joules / 3600 seconds = 0.7322 joules per second, which means Chris' wattage is 0.7322 watts.
This calculation, however, seems to be based on a misunderstanding. Usually, the term "calories" in the context of exercise refers to kilocalories (often labeled as Calories with an uppercase 'C'). Therefore, we should multiply 630 by 1000 before converting to joules:
630,000 calories * 4.184 joules/calorie = 2,635,920 joules / 3600 seconds = 731.6 watts.