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
Tema [17]
3 years ago
15

Suppose someone pours 0.250 kg of 20.0ºC water (about a cup) into a 0.500-kg aluminum pan with a temperature of 150ºC. Assume th

at the pan is then placed on an insulated pad and that a negligible amount of water boils off. What is the temperature when the water and pan reach thermal equilibriuma short time later?
Physics
1 answer:
Troyanec [42]3 years ago
8 0

Answer : The temperature when the water and pan reach thermal equilibrium short time later is, 59.10^oC

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of aluminium = 0.90J/g^oC

c_2 = specific heat of water = 4.184J/g^oC

m_1 = mass of aluminum = 0.500 kg = 500 g

m_2 = mass of water = 0.250 kg  = 250 g

T_f = final temperature of mixture = ?

T_1 = initial temperature of aluminum = 150^oC

T_2 = initial temperature of water = 20^oC

Now put all the given values in the above formula, we get:

500g\times 0.90J/g^oC\times (T_f-150)^oC=-250g\times 4.184J/g^oC\times (T_f-20)^oC

T_f=59.10^oC

Therefore, the temperature when the water and pan reach thermal equilibrium short time later is, 59.10^oC

You might be interested in
B. A car is moving 4.0 m/s to the right. The car begins to accelerate at a rate of 1.5 m/s/s, to the right. After
Maurinko [17]
There you go, hope that helps.

7 0
2 years ago
Convert 15*c in Fahrenheit
balandron [24]

Answer:

it is 59 degrees Fahrenheit

5 0
2 years ago
Read 2 more answers
PLZ HELP ME Which are not correct statements?
AURORKA [14]
<span>A. Boyle's law only works when the pressure is constant.
</span><span>D. Charles's law relates volume and pressure.

Hope this helps!</span>
8 0
3 years ago
A car traveling at 20 m/s starts to decelerate steadily. It comes to a complete stop in 7 seconds. What is it’s acceleration?
Yuki888 [10]
I think the answer is -2.9m/s2.
6 0
3 years ago
What is the purpose of using significant figures? How does it relate to accuracy, precision, resolution, and uncertainty?
Umnica [9.8K]

Answer:

#see solution for details

Explanation:

-Uncertainty refers to an estimate of the amount by which a result may differ from this value,

-Precision refers to how closely repeated measurements agree with each other.

-Accuracy refers to how closely a measured value agrees with the correct value.

-The number of significant figures is the number of digits believed to be correct by the person doing the measuring. Therefore, choosing the correct number of significant figures reduces the deviation from the point of accuracy/uncertainty or precision and thereby reducing margin of error in the ensuing calculations.

7 0
3 years ago
Other questions:
  • What is instantaneous speed
    10·1 answer
  • What is the average speed of a car that traveled 222.0 miles in 4.596 hours?
    13·1 answer
  • Can someone solve under section two, numbers one and two?
    10·2 answers
  • It takes 1 minute for 45 c to pass a point in a circuit, what is the current flowing through the circuit?
    5·1 answer
  • What is the density of a 2 gallon milk jug that has a mass of 2.0 kg? Answer should be in g/ml.
    10·1 answer
  • What is the primary energy source that drives earth’s water cycle between the atmosphere, oceans and land?
    12·1 answer
  • Calculate the initial (from rest) acceleration of a proton in a 5.00 x 10^6 N/C electric field (such as created by a research Va
    13·1 answer
  • (b) The cabin and passengers have a total mass of 800 kg. The vertical distance between
    12·1 answer
  • What causes tides on earth
    12·1 answer
  • Rutherford tracked the motion of tiny, positively charged particles shot through a thin sheet of gold foil. Some particles trave
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!