Question

Was the thermal energy gained by the water greater, the same as, or less than the...

Was the thermal energy gained by the water greater, the same as, or less than the electrical energy dissipated by the resistor? Show calculations to justify your answer.

volume of water = 100 mL

Density of water = 1.00 g/mL

Mass of water = 100 g

Power Supplied = 2.10 W

Thermal Energy = 450 calories

Termperature Max = 26.6 degrees celcius

Temperature Min = 22.1 degrees celcius

Electrical Energy = 2268 J, 542 Calories

Electrical Equivalent of Heat = 5.04 J/cal (our calculated value)

Accepted Value = 4.186 J/cal

I provided every number that we calculated or we were gave in our electrical equivalent of heat lab, I don't know how to answer this question. Any help is greatly appreciated!

The correct answer is less than.

Since

Thermal Energy = 450 calories

Electrical Energy = 542 Calories

Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
• Mass of the calorimeter cup = 60 gm; mass of water= 100 gm; water equivalent mass...

Mass of the calorimeter cup = 60 gm; mass of water= 100 gm; water equivalent mass of coil =2.5 gm; initial temperature of the water = 20° C; final temperature of water in cup = 41° C; total heating time = 20 minutes. Using this initial data set, complete the rest of the data sheet. Take the specific heat of the water as 1cal/gmº C and cup as 0.22 cal/gmº C. The average current and voltages are 2.75 A and...

• When boiling water, a hot plate takes an average of 7 minutes (min) and 16 seconds...

When boiling water, a hot plate takes an average of 7 minutes (min) and 16 seconds [s] to boil 150 milliliters [ml] of water. Assume the temperature in the lab is 78 degrees Fahrenheit (°F). The hot plate is rated to provide 379 watts [W]. If we wish to boil 150 milliliters (ml) of acetone using this same hot plate, how long do we expect the process to take? Acetone has a boiling point of 56 degrees Celsius [°C]. [Hint:...

• can you write a conclusion for the report? Thermal Conductivity Lab Introduction The objective of this...

can you write a conclusion for the report? Thermal Conductivity Lab Introduction The objective of this lab is to explore the thermal conductivity of various materials using Fourier’s Law and a steady state system. Certain materials are more effective heat conductors than others. The effectiveness of a given material at heat conduction is influenced by many factors, including density, molecular structure, and chemical composition. Fourier’s Law takes these factors into account to calculate Q, or the joules per second rate...

• In this experiment, you will determine and compare the quantity of heat energy released in three exothermic chemical rea...

In this experiment, you will determine and compare the quantity of heat energy released in three exothermic chemical reactions through application of Hess’s law. Reaction 1: NaOH(s) → Na+(aq) + OH-(aq) + x1 kJ Reaction 2: NaOH(s) + HCl(aq) → H2O(l) + Na+(aq) + OH-(aq) + x2 kJ Reaction 3: NaOH(aq) + HCl(aq) → H2O(l) + Na+(aq) + OH-(aq) + x3 kJ In order to accurately measure the heat released in each reaction, we will be using a calorimeter. As...