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
GenaCL600 [577]
3 years ago
11

If a 30 gram sample of Copper shots (specific heat = 0.385 J/gºC) changed from 27ºC to 90ºC, how much heat was involved?

Chemistry
2 answers:
Readme [11.4K]3 years ago
4 0

Answer:

A = 728J

Explanation:

Mass of substance = 30g

Specific capacity of copper = 0.385J/g°C

Initial temperature (T1) = 27°C

Final Temperature (T2) = 90°C

Heat energy (Q) = ?

Heat Energy (Q) = Mc∇T

Q = heat energy

M = mass of the substance

C = specific heat capacity of the substance

∇T = change in temperature of the substance = T2 - T1

Q = mc∇T

Q = mc×(T2 - T1)

Q = 30 × 0.385 × (90 - 27)

Q = 11.55 × 63

Q = 727.65J

The heat energy required to raise 30g of copper sample from 27°C to 90° is 728J

Natasha_Volkova [10]3 years ago
3 0

Answer:

728J

Explanation:

The following data were obtained from the question:

Mass (M) = 30g.

specific heat capacity (C) = 0.385 J/gºC.

Initial temperature (T1) = 27ºC

Final temperature (T2) = 90ºC

Change in temperature (ΔT) = T2 – T1 = 90°C – 27 = 63°C

Heat (Q) =...?

The heat involved can be obtained as illustrated below:

Q = MCΔT

Q = 30 x 0.385 x 63

Q = 728J

Therefore the heat involved is 728J

You might be interested in
3,621.471 in scientific notation?
tiny-mole [99]
That would be 3.621471•10^3
3 0
2 years ago
The properties of elements are different than the compound that the elements form. Is this statement True or False
ki77a [65]

Answer:

true

Explanation:

3 0
2 years ago
What is the basic principle of chromatography process ​
Elina [12.6K]

process by which one separates compounds from one another by passing a mixture through column that retains some compounds longer than others.

4 0
3 years ago
Why does knowing the mass of an object not help you identify what material the object is made from?
jeka57 [31]
Because mass is not always the same for objects made from the same material. Just because an object has the same mass as another doesn’t mean they are the same material.
4 0
3 years ago
Which energy transformation takes place in a gasoline lawn mower?
fenix001 [56]

Hey there!!

A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.

Hope this helps you and have a great day!!!!                                                    I wish you the best of luck (:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to the radius of non metal atom when it forms an ion?
    10·1 answer
  • A balloon containing helium gas expands from 230 mL to 860 mL as more helium is added. What was the initial quantity of helium p
    14·2 answers
  • What was the control in Pasteur's experiment?
    8·1 answer
  • A 2.0 L solution made by adding solid NaClO to water resulted in a basic equilibrium with a pH of 10.50. How many moles of NaClO
    5·1 answer
  • Which of the following shows the 3 main jobs of a cell?
    7·1 answer
  • What was the main reason why Alfred Wegener's theory about the movement of the continents was dismissed in 1912?
    8·1 answer
  • Which statement best describes a physical change?
    9·1 answer
  • Smoking till my eyes roll back like the omen lyrics.
    9·1 answer
  • True or false? You can follow the progress of a reaction that produces a gas using a sensitive mass
    11·1 answer
  • Calculate the pH of the following:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!