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
rjkz [21]
3 years ago
11

A metal object with a mass of 19g is heated to 96c, then transferred to a calorimeter containg 75g of water at 18c. the water an

d metal object reach a final temperature of 22c.
a. what is the specific heat of this metal object?
Physics
2 answers:
avanturin [10]3 years ago
6 0

Let us say that Cp is the specific heat of the metal object. Then we do a heat balance (heat lost by metal = heat gained by water):

- 19g * Cp * (22degC – 96degC) = 75g * 4.184J/g degC * (22degC – 18degC)

<span>Cp = 0.893 J/g degC</span>

sasho [114]3 years ago
4 0

Answer;


Specific heat of the metal object  = 0.893 J/g°C  

Explanation and solution;

Quantity of heat = mass × specific heat capacity × change in temperature

ΔQ = Mcθ

Heat lost by the metal object = Heat gained by water

Heat lost by the metal object

= Mass of the metal object × specific heat of the metal ×change in temp

= 19 x specific heat ×( 22 - 96)

= 1406 × specific heat

Heat gained by water

= Mass of water × specific heat capacity of water × change in temperature

= 75 x 4.186 x ( 22 - 18)  

= 1255.8  J

Therefore;

= 1406 x specific heat = 1255.8  


Specific heat = 0.893 J/g°C  


You might be interested in
What is the internal energy of 4.50 mol of N2 gas at 253°C? To solve this
Finger [1]

The internal energy of the gas is 49,200 J

Explanation:

The internal energy of a diatomic gas, such as N_2, is given by

U=\frac{5}{2}nRT

where

n is the number of moles

R is the gas constant

T is the absolute temperature of the gas

For the gas in this problem, we have:

n = 4.50 (number of moles)

R = 8.31 J/(mol·K) (gas constant)

T=253^{\circ} + 273 = 526 K (absolute temperature)

Substituting, we find:

U=\frac{5}{2}(4.50)(8.31)(526)=49,200 J

Learn more about ideal gases:

brainly.com/question/9321544

brainly.com/question/7316997

brainly.com/question/3658563

#LearnwithBrainly

6 0
3 years ago
How does kinetic energy affect the stopping distance of a small vehicle compared to a large vehicle?
Studentka2010 [4]
Kinetic energy is the energy applied or present in a moving object. According to Newton's second law of motion the magnitude of acceleration of an object is proportional to the magnitude of the net force but inversely proportional to its mass. So the Kinetic Energy of a moving car of small vehicle is greater than the large vehicle if both are applied with the same net force. The greater the Kinetic Energy the longer the stopping distance
8 0
3 years ago
Water flows from the bottom of a storage tank at a rate of r(t) = 300 − 6t liters per minute, where 0 ≤ t ≤ 50. Find the amount
SSSSS [86.1K]

r(t) models the water flow rate, so the total amount of water that has flowed out of the tank can be calculated by integrating r(t) with respect to time t on the interval t = [0, 35]min

∫r(t)dt, t = [0, 35]

= ∫(300-6t)dt, t = [0, 35]

= 300t-3t², t = [0, 35]

= 300(35) - 3(35)² - 300(0) + 3(0)²

= 6825 liters

7 0
3 years ago
After 24.0 days 2.00 milligrams of an original 128.0. Milligram sample remain what is the half life of the sample
alina1380 [7]

Answer:

4 days

either multiply 128 by .5 until you get to 2 counting each time or use 2 formulas ln(n2/n1)=-k(t2-t1) to get k then input k into ln(2)=k*t1/2

n2 is final amount and n1 is beginning and t is either time elapsed as in the first formula or the actual half life that is t1/2

Explanation:

5 0
3 years ago
The distance from one Crest to the next Crest is the blank
Luda [366]
The distance from one crest to the next crest in a set of waves is called the wavelength. The distance from the crest of one wave to the equilibrium point is called frequency.
Hope that helped! =)
8 0
3 years ago
Read 2 more answers
Other questions:
  • Some refrigerators use propane as their energy source. What kind of energy do these refrigerators utilize?
    7·2 answers
  • The rotating nozzle sprays a large circular area and turns with the constant angular rate theta overscript dot endscripts = 2.2
    6·1 answer
  • In binocular rivalry, you see one image in the left eye and an incompatible image in the right eye. what do you perceive?
    12·1 answer
  • 162 x [ 6 ( 7 x 4²) ]<br><br> I got 108,864, Is this correct?
    12·1 answer
  • Which of the following statements about radiation is true?
    8·1 answer
  • Se desea cortar una tela en pedazos rectangulares cuya área sea igual a 72 cm2 a. Elaborar la tabla que muestra los posibles val
    13·1 answer
  • Can someone help me match the words?
    13·1 answer
  • A 3.00-g bullet has a muzzle velocity of 230 m/s when fired by a rifle with a weight of 25.0 N. (a) Determine the recoil speed o
    12·1 answer
  • THE RIGHT ANSWER WILL RECEIVE A BRAINLESS AND POINTS AND THANKS!!!
    9·1 answer
  • If light photons are massless then why are they attracted by black holes?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!