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
Nuetrik [128]
3 years ago
9

A hot copper pan is dropped into at tub of hot water. If the water's temperature rises, what happens to the temperature of the p

an? How will you know when the water and the copper pan reach thermal equilibrium?
Physics
2 answers:
choli [55]3 years ago
8 0

Explanation:

As it is given that hot pan of copper is dropped into a tub of hot water and the temperature of water rises. This means that heat from the pan has been released and this heat is gained by water.

As a result, temperature of copper pan has decreased and this decrease will continue till the time temperature of both copper pan and water will reach the same temperature.

As thermal energy is defined as the energy in which when two objects come in physical contact with each other then no exchange of heat energy will take place.

Thus, we can conclude that when temperature of both copper pan and water will be equal then it means that both of them has reached thermal equilibrium.

snow_lady [41]3 years ago
7 0

Answer:

  • Thus the overall temperature of the water increases and the temperature of the pan decreases if the water is less hotter than the pan and vice-versa if the water is hotter than the pan.

m_c.c_c.(T_f-T_{ic})=m_w.c_w.(T_f-T_{iw})

Explanation:

  • Thus the overall temperature of the water increases and the temperature of the pan decreases if the water is less hotter than the pan.

When a hot copper pan is dropped into a tub of hot water then the water temperature further rises until it reaches the boiling point (ideally).

But what happens practically is as if the pan is too hot and comes in contact with the hot water suddenly then the water molecules near to it firstly gain the heat from it and if their rate of heat absorption is faster then they convert into steam and the bubble is observed in the tub water which may rise up but due to relatively cooler water in contact it condensed back within the liquid. Only the surface water open to atmosphere may directly vaporize.

  • When the water is hotter than the pan then the pan will absorb the heat to increase its temperature and the water will cool down.

When the water and copper pan reach the thermal equilibrium can be precisely known only by the calculation where the following quantities must be known:

(heat lost by one body is the heat gained by the other body)

  • Heat transfer through copper = Heat transfer through water

Q_c=Q_w

m_c.c_c.(T_f-T_{ic})=m_w.c_w.(T_f-T_{iw})

where:

T_f= final temperature of the system

m_c\ \&\ m_w= mass of copper and water respectively

c_c\ \&\ c_w= specific heat of copper and water respectively

T_{ic}\ \&\ T_{iw}= initial temperature of copper and water respectively

You might be interested in
Give reason.<br><br><br>b} String roller is an example of wheel and axel .Why?<br><br>​
Leokris [45]

Explanation:

string roller is called an example of wheel and axel because The thin rod which needs to be turned is called the axle and the wider object fixed to the axle, on which we apply force is called the wheel.

hence the we apply force on the roller and the string gets tight.

8 0
3 years ago
When current first leaves the battery, how much voltage does it have
rjkz [21]

Answer:

depends on the voltage of battery

Explanation:

for example if you connect a battery of 6V,6V will be  provided

8 0
2 years ago
A car is traveling at 60 mph. If the rate of speed increases 4 mph each hour,
Sauron [17]

Answer:

5 hours ................

6 0
3 years ago
Read 2 more answers
(NO LINKS) A carpenter strikes a nail with a hammer, pushing it into wood.
Andrej [43]

Answer:

D, Im not very sure about this but I would say D

Explanation:

I tried

6 0
2 years ago
.
fomenos

Answer:

The bulbs should be connected in parallel.

Explanation:

We want to find out a way to hook  up 2 light bulbs and a battery so that when one bulb burns out or is disconnected the other bulbs stays lit.

We must connect the two bulbs in parallel so that even when one bulb is burns out, it will have no effect on the other bulb and the 2nd bulb will keep on working. The current flowing in each bulb will depend upon the resistance of each bulb and the voltage will be same across each bulb.

On the other hand, if we use a series circuit then if one bulb burns out then the there is no flow of current in the circuit and therefore, the second bulb will not be operational.

The current flowing through each bulb is given by

I = V/R

The voltage across each bulb is given by

V = IReq

Where I is the current and Req is the equivalent resistance of the two bulbs connected in parallel and is given by

Req = (R₁*R₂)/(R₁+R₂)

The connection diagram is attached where two bulbs are connected in parallel and are power with a battery.

4 0
3 years ago
Other questions:
  • It is possible to hang from a bare power line and not get electrocuted as long as you are not touching the ground, or any conduc
    11·1 answer
  • A toboggan having a mass of 10 kg starts from rest at A and carries a girl and boy having a mass of 40 kg and 45 kg, respectivel
    15·1 answer
  • An object in simple harmonic motion has an amplitude of 0.360 m and an oscillation period of 0.620 s. Determine the maximum spee
    14·1 answer
  • Is this statement true or false? Kingdom Animalia includes only vertebrate organisms. A. True B. False
    9·2 answers
  • HELLO .................. OVER HERE ................ HELP NEEDED ............... The mass of 7.5 kg has weight of 30 N on a certa
    12·1 answer
  • Acoustics is the study and application of how wildlife navigates at night. true false
    11·1 answer
  • F(x) = 3x^2+5x-14<br> Find f(-9)
    10·1 answer
  • A grating with 400 lines per mm is illuminated with light of wavelength 600.0 nm. a Determine the angles at which maxima are obs
    12·1 answer
  • Photosynthesis occurs in a plant cell's
    8·1 answer
  • Should the size of the test charge compare to the amount of charge that produces the field
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!