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
Ugo [173]
3 years ago
12

A sample of quartz, which has a specific heat capacity of , is dropped into an insulated container containing of water at and a

constant pressure of . The initial temperature of the quartz is . Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has the correct number of significant digits.
Chemistry
1 answer:
klasskru [66]3 years ago
3 0

This question is incomplete, the complete question is;

A 17.0 g sample of quartz, which has a specific heat capacity of 0.730 J.g⁻¹°C⁻¹, is dropped into an insulated container containing 200.0 g of water at 85°C and a constant pressure of 1 atm . The initial temperature of the quartz is 7.2°C.  

Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has the correct 3 number of significant digits.  

Answer:

the equilibrium temperature of the water is 83.9°C

Explanation:

Given the data in the question;

Since no heat is absorbed from or by the container, or the surroundings;

Then  Heat lost by the quartz = heat gained by water

ΔH1 = ΔH2

DH = mcΔT

where m is mass, C is specific heat capacity and ΔT is temperature change;

so

(mcΔT)1 = (mcΔT)2

we know that; specific heat capacity of is 4200 Joule/Kilogram K (J/kg∙K) = 4.2 (J/g∙°C)

we substitute

17.0g × 0.730 J.g⁻¹°C⁻¹ × ( 7.2°C - T2)  = 200.0g × 4.2 J/g∙°C × ( T2 - 85°C)

89.352 -  12.41T2 = 840T2 - 71400

840T2 + 12.41T2 = 89.352 + 71400

852.41T2 = 71489.35

T2 = 71489.35 / 852.41 = 83.86°C ≈ 83.9°C

Therefore, the equilibrium temperature of the water is 83.9°C

You might be interested in
What is the charge on every atom? why is this the charge
inn [45]
Protons, neutron, and elecrons

8 0
3 years ago
Acetic acid only partially ionizes in water. A solution contains a large quantity of acetic acid dissolved in water. How can thi
dusya [7]
B because acetic acid is a weak acid and large quantity means you make it become concentrated
4 0
3 years ago
Read 2 more answers
Describe the motion of molecules in an ice cube and in a radiator in winter
pantera1 [17]
<span>ice cube have lower kinetic energy that molecules in a radiators</span>
6 0
2 years ago
Read 2 more answers
Which description of salt is a physical property?
Genrish500 [490]

Answer:

salt is dull and brittle and conducts electricity when it has been dissolved into water, which it does quite easily.

Explanation:

transparent and colourless in crystalline form- rather like ice.

4 0
2 years ago
How does earth atmosphere affect the motion of a meteroid
zaharov [31]
When a meteroid goes into the atmosphere the friction starts slowing it down and generating heat.
5 0
3 years ago
Other questions:
  • I will give branliest!!!!!! PLEASE ANSWER SOOON! ANSWER ALL QUESTIONS PLEASE EXTRA POINTS TOO
    6·2 answers
  • In which of the following compounds is the mass ratio of chromium to oxygen closest to 1.62 to 1.00?
    5·1 answer
  • An atom contains 4 protons, 3 neutrons, and 5 electrons. what is its total electric charge?
    8·2 answers
  • what happens when a peppermint is put in these three things soda, vinegar, lemon juice, and milk plz help me i need this for my
    9·1 answer
  • PLEASEEEEE PLEASEEEEE ANSWER THIS QUESTION ILL GIVE BRAINLIEST AND 15 POINTSSSSS PLEASEEEEEEEEEEE!!!!!!!!!!
    13·2 answers
  • Problem PageQuestion Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseou
    13·2 answers
  • Dorothy left a frozen juice pop out on the counter. When she returned, the juice pop had melted into a liquid. Which of the foll
    13·1 answer
  • Please answer this. List the three most abundant minerals in this bottle of mineral water.​
    14·1 answer
  • Can someone help? <br><br> Name the compound:
    10·1 answer
  • Can propanol become oxidised to propanoic acid
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!