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
Tems11 [23]
3 years ago
11

3500 J of energy are added to a 0.5 mol sample of iron at 293 K. What is the final temperature of the iron in kelvins? The molar

heat of iron is 25.1 J/(mol•K).
Chemistry
2 answers:
stealth61 [152]3 years ago
4 0

Answer:

T_2=571.9K

Explanation:

Hello,

In this case, we consider the following formula defining the energy and the temperature change for the sample of iron:

Q=n_{Fe}Cp_{Fe}(T_2-T_1)

Now, solving the final temperature, considering a positive inlet heat, we have:

T_2=T_1+\frac{Q}{n_{Fe}Cp{Fe}} =293K+\frac{3500J}{0.5mol*25.1J/(mol*K)} \\T_2=571.9K

Best regards.

Scrat [10]3 years ago
4 0

Answer:

Explanation:

Step 1: Data given

Number of heat transfer = 3500 J

Number of moles of iron = 0.5 moles

Initial temperature = 293 K

The molar heat of iron is 25.1 J/(mol*K)

Step 2: Calculate ΔT

Q = n* C * ΔT

⇒with Q = the heat transfer = 3500 J of energy

⇒with n = the number of moles iron  = 0.5 moles

⇒with C = the molar heat of iron = 25.1 J/mol*K

⇒ΔT = the change of temperature = T2 - T1 = T2 - 293 K

3500 J = 0.5 moles *25.1 J/mol * K * ΔT

ΔT = 278.9

Step 3: Calculate ΔT

ΔT = 278.9 = T2 - T1 = T2 - 293 K

T2 = 278.9 + 293 K

T2 = 551.9 K

You might be interested in
Which statement about a chemical reaction is true?
Afina-wow [57]

yes yes yes yes yes yes yes yes yes yes yes yes yes yes

7 0
3 years ago
Is the chemical equation balanced?<br><br> Yes or no
Strike441 [17]
I think it is not so no
6 0
2 years ago
Read 2 more answers
What is the symmetry of n??
Aleks [24]

Answer:

n don't hv symmetry lines.

so the symmetry of n is 0

6 0
3 years ago
What is the medical term for ringing, buzzing, or hissing in the ears?
Thepotemich [5.8K]
Tinnitus is the ringing in ears or buzzing and hissing
7 0
3 years ago
9- These are found on the periodic table of elements and are made up of
stellarik [79]

Answer:

C

Explanation:

Elements are found on the periodic table.

Hope this helped!

4 0
3 years ago
Other questions:
  • You are given two closed containers. Each containing a liquid solvent. Ammonia and table salt will dissolve in container A. Hexa
    14·2 answers
  • Propane, the gas used in barbeque grills, is made of carbon and hydrogen. Will the atoms that make up propane form covalent bond
    8·2 answers
  • A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal.
    7·2 answers
  • Which of the following statements about metallic bond are correct?
    15·1 answer
  • In an ecosystem, what do organisms and populations with similar needs compete<br>over?​
    9·1 answer
  • An ion is:
    15·2 answers
  • The acid dissociation constant Ka of boric acid (H3BO3) is 5.8 times 10^-10. Calculate the pH of a 4.4 M solution of boric acid.
    13·1 answer
  • Why does spring tides occur
    9·1 answer
  • Need the following questions answered please and thank you
    14·1 answer
  • Draw the ring chain of isomer of propene ?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!