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
tatiyna
3 years ago
14

The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temp

erature from 20°C to 21°C?
Chemistry
2 answers:
Anestetic [448]3 years ago
7 0
ΔT = 21º C - 20 ºC => 1 º C

Q = m x C x ΔT

Q = 10 x 0.09 x 1

Q = 0.9 Cal

hope this helps!

Arlecino [84]3 years ago
5 0

Answer : The amount energy needed is, 0.9 cal

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat required = ?

m = mass of copper = 10 g

c = specific heat of copper = 0.09cal/g^oC      

\Delta T=\text{Change in temperature}  

T_{final} = final temperature = 21^oC

T_{initial} = initial temperature = 20^oC

Now put all the given values in the above formula, we get :

Q=10g\times 0.09cal/g^oC\times (21-20)^oC

Q=0.9cal

Therefore, the amount energy needed is, 0.9 cal

You might be interested in
Juan inflates a balloon and then releases its end to let the balloon go free as air comes out. The balloon then flies around the
MArishka [77]
Here is the correct option: According to Newton's third law of motion, the balloon is pushed forward as the air is forced out.  Newton's third law of motion states that for every action there is an equal and opposite reaction. This means that in every interaction, there is a pair of force that is acting on the interacting objects, the size of the force on the first object is equal to the size of the force on the second object.
5 0
3 years ago
Read 2 more answers
describe the" fear appeal" and how it's used in public messaging. Give an example or create your own public health message using
Vsevolod [243]
A good example is cigarretes they try to scare you into not smoking by telling you all of the downsides of smoking like lung cancer and i guess that would be fear appeal 
7 0
3 years ago
Give one example of Lewis acid
erma4kov [3.2K]

Answer:

<em><u>Copper </u></em><em><u>(</u></em><em><u>Cu2)</u></em><em><u> </u></em><em><u>,</u></em><em><u> </u></em><em><u>Iron </u></em><em><u>(</u></em><em><u>Fe2+</u></em><em><u> </u></em><em><u>Fe3 </u></em><em><u>+</u></em><em><u>)</u></em><em><u> </u></em><em><u>,</u></em><em><u> </u></em><em><u>and </u></em><em><u>Hydrogen </u></em><em><u>ion </u></em><em><u>(</u></em><em><u>H+</u></em><em><u>)</u></em>

Explanation:

I hope it helps u dear! ^_^

8 0
2 years ago
Where is earths mantle located
matrenka [14]
<span>it is located directly under the sima</span>
4 0
3 years ago
Read 2 more answers
help me on the bottom pleaseeeeeeee also please check the top BUT I NEED HELP OM THE BOTTOM TAJNKSKSKSLSLSLALS GOOODD BLESSS UUU
Yanka [14]
Because when you take the sand out it doesn't stay the same shape
3 0
3 years ago
Other questions:
  • Which atomic model describes the atom as a nucleus surrounded by electrons that travel as waves in the electron cloud? (4 points
    10·1 answer
  • What situation would not encourage competition ?
    8·1 answer
  • 30) How many grams of CH3OH must be added to water to prepare 210 mL of a solution that is
    15·1 answer
  • Iron(II) is available to bond with chloride ion. How many of each type of ion will bond to form an ionic compound?
    7·1 answer
  • What do the arrows and coefficients used by chemists in equations communicate?
    11·2 answers
  • Why do large area's of water change how the wind blows?
    15·2 answers
  • 17) What is the molarity
    11·1 answer
  • What indicates that two objects are in thermal equilibrium?
    8·1 answer
  • How to determine intermolecular forces.
    6·1 answer
  • Calculate the pH of solutions prepared by a. Dissolving 4.8 g of lithium hydroxide in water to give 250 mL of solution
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!