1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Karo-lina-s [1.5K]
3 years ago
5

Suppose 9.30 3 105 J of energy are transferred to 2.00 kg of ice at 0°C. (a) Calculate the energy required to melt all the ice i

nto liquid water. (b) How much energy remains to raise the temperature of the liquid water? (c) Determine the final temperature of the liquid water in Celsius.
Physics
1 answer:
Ratling [72]3 years ago
6 0

Answer:

(a) 672000 J

(b) 258300 J

(c) 30.75 °C

Explanation:

<em>(a) Energy required to melt the ice = Latent heat of fusion of ice</em>

<em>Latent heat of fusion of ice (Q₁) = lm............................. Equation 1</em>

<em>Where l = specific latent heat of fusion of ice, m = mass of ice</em>

<em>Given: m = 2.00 kg</em>

<em>Constant : l = 336000 J/kg</em>

<em>Substituting these values into equation 1,</em>

Q₁ = 336000 × 2

Q₁ = 672000 J.

<em>Energy required to melt the ice = 672000 J</em>

<em>(b) The Energy remains to raise the temperature of the liquid water = Total Energy - Energy requires to melt  the ice.</em>

<em>Given: </em><em>Total Energy = 9.303 × 10⁵ J, = 930300 J</em>

<em>Energy remain to raise the temperature of the liquid water = </em>

<em>930300 - </em>672000

<em>Total Energy  = 258300 J</em>

Energy remain to raise the temperature of the liquid water = 258300 J.

<em>(c): Q = cmΔT ............. equation 2</em>

<em>Where c = specific heat capacity of water, m = mass of water, ΔT = change in temperature, Q = Energy required to change the temperature of liquid water  </em>

<em>Making ΔT the subject of formula in the equation above,</em>

<em>ΔT = Q/cm........................................... Equation 3</em>

<em>Given: m = 2.00 kg, Q = 258300 J</em>

<em>Constant: C = 4200 J/kg. K</em>

<em>Substituting these values into equation 3</em>

<em>ΔT = 258300/(4200×2)</em>

<em>ΔT = 258300/8400</em>

<em>ΔT = 30.75 K</em>

But ΔT = T₂ - T₁

Where T₁ initial temperature, T₂ = final Temperature

T₂ = T₁ + ΔT,

<em>Given: T₁ = 0 °C</em>

<em>Therefore,</em>

<em>T₂ = 30.75 + 0 = 30.75</em>

<em>T₂ = 30.75 °C</em>

Final temperature of water = 30.75 <em>°C</em>

You might be interested in
What is the wavelength in air of red light from a helium neon laser?
Elza [17]

Answer:

632.8 nm is the wavelength (in air) of red light from a helium neon laser.

4 0
2 years ago
A stone is dropped off a cliff. After this stone has traveled a distance d . A second stone is dropped. the distance between the
Sladkaya [172]

Answer:

the same stones distance will be condtant .

so option no E

7 0
3 years ago
when approaching the front of an idling jet engine, the hazard area extends forward of the engine approximately
Dominik [7]

when approaching the front of an idling jet engine, the hazard area extends forward of the engine approximately 25 feet.

<h3>What impact, if any, would jet fuel and aviation gasoline have on a turbine engine?</h3>

Tetraethyl lead, which is present in gasoline, deposits itself on the turbine blades. Because jet fuel has a higher viscosity than aviation gasoline, it may retain impurities with greater ease.

Once the gasoline charge has been cleared, start the engine manually or with an electric starter while cutting the ignition and using the maximum throttle.

On the final approach, the aeroplane needs to be re-trimmed to account for the altered aerodynamic forces. A substantial nose-down tendency results from the airflow producing less lift on the wings and less downward force on the horizontal stabiliser due to the reduced power and slower velocity.

Learn more about turbine engine refer

brainly.com/question/807662

#SPJ4

7 0
2 years ago
Please Help!
LekaFEV [45]

The statement that best describes the production of energy in the Sun is nuclei with less mass combine to form nuclei with more mass in the Sun’s core and release energy.

<h3>How is energy produced in the sun?</h3>

Sun is a major source of renewable energy to the Earth. This energy serves various purposes by living organisms.

However, the energy is generated as a result of nuclear fusion, which is the combination of smaller particles to form a larger one.

Therefore, the statement that best describes the production of energy in the Sun is nuclei with less mass combine to form nuclei with more mass in the Sun’s core and release energy.

Learn more about energy at: brainly.com/question/1932868

#SPJ1

7 0
2 years ago
How much total work is done by the force in lifting the elevator from 0.0 m to 9.0 m?
aksik [14]
The total work is

         (mass of the elevator, kg) x (9.8 m/s²) x (9.0 m)           Joules .
8 0
3 years ago
Other questions:
  • How does energy from an ocean wave power stuff in a house?
    12·1 answer
  • In the absence of air, a penny and a feather dropped from the same height will
    12·2 answers
  • Which of the following lists contains only examples of renewable sources of energy?
    14·2 answers
  • 1. A ball is thrown vertically upward.
    11·1 answer
  • A metal wire of resistance R is cut into two pieces of equal length. The two pieces are connected together side by side. Part A
    11·1 answer
  • Which is an example of precipitation?
    15·1 answer
  • How do velocities combine
    12·1 answer
  • Takes 5 seconds and 2,000 J for a crane to lift a very heavy object. Which of these correctly describes power and energy for thi
    15·1 answer
  • What is gram used to measure <br><br> A. volume<br> B. Mass<br> C. distance<br> D. Time
    9·1 answer
  • 200 N of force is applied to the pedals of a bike has output force of 450 N what is the mechanical advantage of the bike
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!