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
Aleksandr-060686 [28]
2 years ago
6

How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature

from 25 °C to its melting temperature of 1535 °C?
Chemistry
1 answer:
svp [43]2 years ago
5 0

Answer:

50,849.25 Joules

Explanation:

The amount of heat, Q, required to raise the temperature of a body with mass, m, and specific heat capacity, c is given by:

Q = mcΔT, where ΔT represents the change in temperature.

In the case of the iron block:

m = 75 g

c = 0.449 J/g °C

ΔT = 1535 - 25 = 1510 °C

Therefore,

Q = 75 g x 0.449 J/g °C x 1510 °C

     = 50,849.25 Joules

<em>Hence, </em><em>50,849.25 Joules </em><em> of heat must be added to  a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C</em>

You might be interested in
If HJ = 7x – 27, find the indicated values.
Sever21 [200]
Lubos na paumanhin. maaari mo bang ipaliwanag muli ang tanong? sa totoo lang galing ako sa phillipines, masasabi mo ba sa fillipino; wika ko
6 0
2 years ago
Explain how engineers and scientists may work together to produce a protein in the lab.
murzikaleks [220]
The scientists would do biological studies of how the protein breakdown and combines with the muscles the engineers with then create a delivery system to get the protein to the muscle quicker and more effectively
7 0
3 years ago
Read 2 more answers
Complete the following reaction.<br> 14/7 N + 1/0 n —&gt; <br> blank/blank C+1/1 H
Nataly_w [17]

Answer:

14/6

Explanation:

U 2 can help me by marking as brainliest........

8 0
2 years ago
Read 2 more answers
List two situations in which measurements have unlimited number of significant figures
GaryK [48]
Your answers would be, (Ex. 3*3*3*3....etc..).
(1), When measurements involving counting
(2), When measurement involves exactly defined quantities




Hope that helps!!!

5 0
3 years ago
If the vapor's volume were to be incorrectly recorded as 125ml, how will this error affect the calculated molar mass of the unkn
pishuonlain [190]
Since you didn't give the actual volume (or any of the experimental values) I can only tell you how to do it. Do the calculation using the real (determined) volume of the flask. Then, re-do the calculation with v = 125ml. Take the two values and calculate % error; m = measured vol; g = guessed vol. 

<span>[mW (m) - mW (g)]/mW (m) x 100% </span>

<span>(they want % error so, if it is negative, just get rid of the sign) </span>
3 0
3 years ago
Other questions:
  • What is the name of the chemical formula Ti3(PO4)2
    9·1 answer
  • Which method reduces carbon dioxide emissions by storing carbon dioxide for a long time?
    10·2 answers
  • Answer these questions :) please
    8·1 answer
  • Which of these properties, used alone, would be LEAST useful in identifying MOST minerals?
    13·2 answers
  • A baby's voice produces sound waves with a higher or lower frequency than a man's?
    9·2 answers
  • Which phase or phases of matter take(s) the shape of its container?
    14·1 answer
  • this environment has lots of trees high tenpatures and high mumidity all year long which environment is this describing Grasslan
    15·1 answer
  • A substance has a molecular formula of C8H10N4O2
    10·1 answer
  • 3. 6 th grade Question
    11·1 answer
  • In this equation, what should be the coefficients of the reactants and products?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!