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
Harman [31]
3 years ago
8

What amount of heat is required to raise the temperature of 25 grams of copper to cause a 15ºC change? The specific heat of copp

er is 0.39 J/gºC.
Chemistry
1 answer:
Mars2501 [29]3 years ago
3 0

Answer:

146.25 J heat is require to cause the change of 15 °C.

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m × c × ΔT

Q = heat or energy in joule

m = mass of substance

c = specific heat of substance

ΔT = change in temperature

Given data:

Mass of copper = 25 g

Temperature change =ΔT= 15 °C

Specific heat of copper = 0.39 J/g.°C

Energy or joules require to increase the temperature Q = ?

Solution:

Q = m × c × ΔT

Q = 25 g × 0.39 J/g .°C × 15 °C

Q = 146.25 J

You might be interested in
PLZZZ HELP!!! A chemist has synthesized a heavy element in the laboratory and found that it had this electron configuration:
Hitman42 [59]

Answer:

Darmstadtium! Happy to help! :)

5 0
3 years ago
Which would be expected to have the higher boiling point, t-butyl alcohol (2-methyl-2-propanol) or n-butyl alcohol (1-butanol)?
Readme [11.4K]
I would imagine that n-butanol would have the higher boiling point because it has less branching and therefore stronger intermolecular forces between molecules.
3 0
2 years ago
What happens immediately before a volcano erupts?
Firdavs [7]
Well, the cause of a volcanic eruption is when the lower crust melts. This leads to the formation of magma. The volcano is an opening through which the magma is discharged. The rock inside the earth melts. This magma is diffused upwards through the volcano. If magma reaches the top of the volcano, it behaviour depends on viscosity. So what happens before a volcanic eruption is that the lower crust melts, causing the formation of magma, which is released through the volcano. Hope i helped. 
3 0
3 years ago
A salt bridge is used to provide electrons a path to flow from the electrode of one half-cell to another. TRUE FALSE
kicyunya [14]
It is false. The salt bridge is not a path for electrons, but a path for ions to flow from one half-cell to another. It help to balance the charge between the oxidation and reduction vessels.
8 0
3 years ago
Most favourable conditions for electrovalency are
anygoal [31]

Answer:

I think

Explanation:

low charge of ions, large cation and small anion

7 0
3 years ago
Other questions:
  • Which of the following statements is true of cations?
    14·1 answer
  • Although you can see the pencil, it appears broken in the glass of water. This is because
    12·2 answers
  • Explain how the following changes would affect the rate of the reaction of 2-bromo-3-methylbutane with methanol: Part A The alky
    7·1 answer
  • PLEASEEEE HELP WITH THIS ID REALLY REALLY APPRECIATE IT
    13·1 answer
  • Reasons why convection is responsible for the uneven heating of the air in the atmosphere
    6·1 answer
  • How many molecules of N2 are in a 400.0 mL container at 780 mm Hg and 135°C? Avogadro’s number = 6.022 x 1023A) 7.01 × 1021 mole
    15·2 answers
  • An FM radio station has a wavelength of 2.813 m . Convert this length to feet.
    5·2 answers
  • The symbol for xenon (xe) would be a part of the noble gas notation for the element
    12·1 answer
  • What is one advantage to using this form of circuit? (AKS 10b)<br> O A.
    15·1 answer
  • A student placed two bar magnets under a sheet of paper and added iron filings on top as shown in Figure 1. Which image shows tw
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!