Question

(c) Consider a 135 meter high waterfall. If the decrease in potential energy of the water (i.e., mgh) is totally converted in

0 0
Add a comment Improve this question Transcribed image text
Answer #1

We have the relation: Heat Energy = mass * Specific heat * Temperature difference

The heat energy her = Potential energy = mgh

Using the values, we get:

mgh = m * 4.184 * Temp difference

m * 9.8 * 135 = m * 4.184 * Temperature difference

Solving, Temperature difference = 316.21 0C

Add a comment
Know the answer?
Add Answer to:
(c) Consider a 135 meter high waterfall. If the decrease in potential energy of the water...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • #1.(30pts, 15 pts each) (g) Consider a 135 meter high waterfall. If the decrease in potential...

    #1.(30pts, 15 pts each) (g) Consider a 135 meter high waterfall. If the decrease in potential energy of the water (i.e., mgh) is totally converted into heat, calculate the temperature difference between the top and bottom of the waterfall. Data: m = mass, g = acceleration due to gravity 9.81 m/s". The specific heat of water 4.184 J/(0°C). (h) If a system absorbs 30.0 J of heat from the surroundings, and if it also decreases its internal energy by 33...

  • Lauc GENERAL CHEMISTRY GROUP STUDY SE The first 3 problems are to be submitted today. #1.(30pts, 15 pts each) (i) C...

    Lauc GENERAL CHEMISTRY GROUP STUDY SE The first 3 problems are to be submitted today. #1.(30pts, 15 pts each) (i) Consider a 100 meter high waterfall. If the decrease in potential energy of the water (.e., mgh) is totally converted into heat, calculate the temperature difference between the top and bottom of the waterfall. Data: m= mass, g = acceleration due to gravity = 9.81 m/s". The specific heat of water = 4.184 J/(g°C). () If a system absorbs 23.0...

  • GENERAL CHEMISTRY GROUP STUDY SB The first 3 problems are to be submitted today. #1.(30pts, 15...

    GENERAL CHEMISTRY GROUP STUDY SB The first 3 problems are to be submitted today. #1.(30pts, 15 pts each) (c) Consider a 135 meter high waterfall. If the decrease in potential energy of the water (i.e., mgh) is totally converted into heat, calculate the temperature difference between the top and bottom of the waterfall. Data: m-mass, g- acceleration due to gravity 9.81 m/s. The specific heat of water- 4.184 J/(g "C). (d) If a system absorbs 30.0 J of heat from...

  • Kerepakupai Vena in Venezuela, more commonly known as Angel Falls, is the world's highest waterfall with...

    Kerepakupai Vena in Venezuela, more commonly known as Angel Falls, is the world's highest waterfall with a height of 979 m and 47 different plunges. The longest plunge (for the water) is 807 m. At the bottom of the fall, the kinetic energy of the water is converted into thermal energy. This results in a temperature increase of the water. If the water has a temperature of 17.1°C when it gets to the bottom of the plunge, what was the...

  • The highest waterfall in the world is the Salto Angel Falls in Venezuela. Its longest fall...

    The highest waterfall in the world is the Salto Angel Falls in Venezuela. Its longest fall has a height of 807 meters. If water at the top of the falls is at rest and at 15°C, what is the maximum temperature of the water at the bottom of the falls? Assume all the kinetic energy of the water as it reaches the bottom goes into raising its temperature. The specific heat capacity for water is 4186 J/kg°C. 3. The highest...

  • When a manganese bar of mass m is dropped through a height difference Δh, its potential...

    When a manganese bar of mass m is dropped through a height difference Δh, its potential energy changes by the amount mgΔh, where g is the acceleration of gravity, equal to 9.81 m s-2. Suppose that when the bar hits the ground, all that energy is converted to heat, increasing the temperature of the bar. If the specific heat capacity of the material in the bar is 0.479 J K-1 g-1, calculate the height from which the bar must be...

  • When a palladium bar of mass mis dropped through a height difference Ah, its potential energy...

    When a palladium bar of mass mis dropped through a height difference Ah, its potential energy changes by the amount mgah, where g is the acceleration of gravity, equal to 9.81 ms. Suppose that when the bar hits the ground, all that energy is converted to heat, increasing the temperature of the bar. If the specific heat capacity of the material in the bar is 0.244 K g calculate the height from which the bar must be dropped to increase...

  • One cubic meter of water (see Table 4.4 for the mass density of water) flowing over...

    One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Lower Falls in Yellowstone National Park drops 94 m. If all of the water's potential energy is converted to kinetic energy at the bottom of the falls and the kinetic energy goes to heat the water, what is the temperature increase of the water?

  • Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.39...

    Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.39 × 106 kg/s. The acceleration of gravity is 9.81 m/s 2 . If half the potential energy of this water were converted into electric energy, how much power would be produced by these falls? Answer in units of MW.

  • Approximately 1.0 x 106 kg of water falls 45 m over a waterfall each second. (a) What is the decrease in the gravitation...

    Approximately 1.0 x 106 kg of water falls 45 m over a waterfall each second. (a) What is the decrease in the gravitational potential energy of the water-Earth system each second? (b) If all this energy could be converted to electrical energy (it cannot be), at what rate would electrical energy be supplied? (The mass of 1 m3 of water is 1000 kg.) (c) If the electrical energy were sold at 3.3 cent/kW·h, what would be the yearly income in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
Active Questions
ADVERTISEMENT