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
harkovskaia [24]
2 years ago
6

A well lagged copper calorimeter of mas 120g contains 70g of water and 10g ice both at 0°C . Dry steam at 100°C is passed in unt

il the temperature of the mixture is 40°C . Calculate the mass of the steam condensed. (Specific latent heat of fusion of ice = 3.2 × 10^2)(specific latent heat of vaporization = 2.2 × 10^3)(specific heat capacity of copper= 4.0×10^-1)(specific heat capacity of water= 4.2)
Physics
1 answer:
Lina20 [59]2 years ago
7 0

Answer:

7.6 g

Explanation:

"Well lagged" means insulated, so there's no heat transfer between the calorimeter and the surroundings.

The heat gained by the copper, water, and ice = the heat lost by the steam

Heat gained by the copper:

q = mCΔT

q = (120 g) (0.40 J/g/K) (40°C − 0°C)

q = 1920 J

Heat gained by the water:

q = mCΔT

q = (70 g) (4.2 J/g/K) (40°C − 0°C)

q = 11760 J

Heat gained by the ice:

q = mL + mCΔT

q = (10 g) (320 J/g) + (10 g) (4.2 J/g/K) (40°C − 0°C)

q = 4880 J

Heat lost by the steam:

q = mL + mCΔT

q = m (2200 J/g) + m (4.2 J/g/K) (100°C − 40°C)

q = 2452 J/g m

Plugging the values into the equation:

1920 J + 11760 J + 4880 J = 2452 J/g m

18560 J = 2452 J/g m

m = 7.6 g

You might be interested in
the acceleration of a body in free fall depends on the place or the world in which it is, true or false?​
Vika [28.1K]

The right answer is True

4 0
3 years ago
What are two ways air resistance can be increased?
elena-14-01-66 [18.8K]
The increase in speed leads to an increase in the amount of air resistance. Eventually, the force of air resistance becomes large enough to balances the force of gravity. At this instant in time, the net force is 0 Newton; the object will stop accelerating. The object is said to have reached a terminal velocity.
7 0
3 years ago
Atmospheric pressure is greater at the base of a mountain than at
aliina [53]

At the top of the mountain, when he tightens the cap onto the bottole, there is some water and some air inside the bottle.  Then he brings the bottle down to the base of the mountain.

The pressure on the outside of the bottle is greater  than it was when he put the cap on.  If anything could get out of the bottlde, it would. But it can't . . . the cap is on too tight. So all the water and all the air has to stay inside, and anything that can get squished into a smaller space has to get squished into a smaller space.

The water is pretty much unsquishable.

Biut the air in there can be <em>COMPRESSED</em>.  The air gets squished into a smaller space, and the bottle wrinkles in slightly.

8 0
2 years ago
Why do we get dizzy when we spin?
iris [78.8K]
The body senses whether it is upright or lying down or whether it is moving or standing still through the vestibular system, which is in the upper portion of the inner ear.
3 0
2 years ago
Why is Florida more vulnerable to the effects of climate change? ​
AURORKA [14]

Answer:

Along the Atlantic and Gulf Coasts of Florida, the land surface is also sinking. If the oceans and atmosphere continue to warm, sea level along the Florida coast is likely to rise one to four feet in the next century. Rising sea level submerges wetlands and dry land, erodes beaches, and exacerbates coastal flooding.

Explanation:

6 0
3 years ago
Other questions:
  • What effect does freezing water into a ice cube have on its mass
    12·1 answer
  • One of your fellow students comes up to you and asks the following question, "If an object is not moving, can it be accelerating
    10·1 answer
  • _____ is the preceived frequency of a sound wave.​
    15·1 answer
  • Suppose the ring rotates once every 4.30 s . If a rider's mass is 53.0 kg , with how much force does the ring push on her at the
    14·1 answer
  • If an object is dropped from a height of 144 feet, the function h(t)= -16t^2+144 gives the height of the object after t seconds.
    7·1 answer
  • A student allows the evaporating dish and the anhydrous salt for a long time on the lab bench. What will happen to the mass of t
    14·1 answer
  • Express in words AND mathematically the relationship between…<br> Period and frequency
    14·1 answer
  • Different between : <br>Metalloids and alloys ​
    15·2 answers
  • A block of mass 5 kg slides down an inclined plane that has an angle of 10. If the inclined plane has no friction and the block
    11·1 answer
  • The absolute temperature of a gas is t. in order to double the rms speed of its molecules, what should be the new absloute tempe
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!