Question
A water heater contains 55 gal of water. How many kilowatt-hours of energy are necessary to heat the water in the water heater by $25^{\circ} \mathrm{C} ?$
Step 1
We know that 1 gallon of water is approximately 3784 grams. So, for 55 gallons of water, the mass would be $55 \times 3784 = 207,620$ grams. Show more…
Show all steps
Your feedback will help us improve your experience
David Collins and 79 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A water heater contains 53 gallons of water. How many kilowatt-hours of energy are necessary to heat the water in the water heater by 25°C?
A water heater contains 52 gal of water. How many kilowatt-hours of energy are necessary to heat the water in the water heater by 25 ∘C? Express your answer using two significant figures.
A portable electric water heater transfers 255 watts $(\mathrm{W})$ of power to 5.5 L of water, where $1 \mathrm{W}=1 \mathrm{J} / \mathrm{s}$. How much time (in minutes) does it take for the water heater to heat the 5.5 L of water from $25^{\circ} \mathrm{C}$ to $42^{\circ} \mathrm{C} ?$ (Assume that the water has a density of $1.0 \mathrm{g} / \mathrm{mL} .)$
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD