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A calorie is defined as the amount of energy needed to raise one mL of water one degree of temperature, and is equal to 4.184J. If a 300 mL beaker of water experiences a temperature increase of 32 degrees, how many joules of energy have been absorbed?

A. 133.632 J
B. 134.348 J
C. 135.552 J
D. 136.768 J

User AnjumSKhan
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1 Answer

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Final answer:

The energy absorbed by the beaker of water when heated by 32 degrees Celsius is calculated as the product of the volume of the water, the temperature increase, and the energy equivalent of one calorie in joules. However, the correct answer of 40253.44 Joules is not listed among the options provided, which indicates an issue with the question or options.

Step-by-step explanation:

To calculate the number of joules of energy absorbed by the water, we can use the definition of a calorie and the given conversion factor. Since 1 calorie is the amount of energy needed to raise the temperature of 1 mL of water by 1 degree Celsius and is equal to 4.184 joules, we can calculate the energy absorbed by a 300 mL beaker of water experiencing a 32 degrees temperature increase as follows:

E (in joules) = amount of water (mL) × temperature increase (degrees Celsius) × conversion factor (J/cal)

E = 300 mL × 32 degrees × 4.184 J/cal

E = 40253.44 joules

Therefore, the correct amount of energy that has been absorbed is not listed in the provided options (A to D), suggesting there might be an error in the question or the options presented.

User Mewa
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