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
ddd [48]
3 years ago
7

How much heat energy is required to raise the temperature of 0.358 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of co

pper is 0.0920 cal/(g⋅∘C) .
Chemistry
2 answers:
NNADVOKAT [17]3 years ago
7 0
In order to calculate how much heat is needed to raise the temperature you need to use the formula q =mass x specific heat x (final temperature- initial temperature) where q represents heat being absorbed or released. Before you begin you would convert kg to g because the specific heat is measure in g. So you would set up the equation as q = 358 g x .092 x (60-23 degrees Celsius) which would give you 1218.6
allsm [11]3 years ago
7 0

Answer:

1.22 × 10³ cal

Explanation:

Given data

  • Mass of Cu (m): 0.358 kg = 358 g
  • Initial temperature: 23.0°C
  • Final temperature: 60.0°C
  • Change in the temperature (ΔT): 60.0°C - 23.0°C = 37.0°C
  • Specific heat of Cu (c): 0.0920 cal/g.°C

We can calculate the heat (Q) required to raise the temperature of 0.358 kg of copper from 23.0°C to 60.0°C using the following expression.

Q = c × m × ΔT

Q = (0.0920 cal/g.°C) × 358 g × 37.0°C

Q = 1.22 × 10³ cal

You might be interested in
Which characteristic could distinguish a crystalline solid from an amorphous
Mrac [35]

Answer:

The way it breaks

Explanation:

a-p-e-x

8 0
3 years ago
A small piece of Cr metal reacts with dilute HNO3 to form H2 (g), which is collected over water at 18 C in a large flask. The to
Sauron [17]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The partial pressure is P_p= 737.5 mm \ of  \ Hg

Explanation:

The Partial pressure of H_2 is mathematically represented as

           P_p = P_T -P_w

Where P_T is the total pressure of water with a value of 15.5 mm of Hg

           P_w is the partial pressure of water with a value 753 mm of Hg

Now substituting values

          P_p = 753-15.5

               P_p= 737.5 mm \ of  \ Hg

       

3 0
3 years ago
Read 2 more answers
Consider the following equilibrium: CO2(g) + C(graphite) 2CO(g); ΔH = 172.5 kJ The equilibrium constant for this reaction will
bezimeni [28]

Answer: Option (B) is the correct answer.

Explanation:

As the given reaction is as follows.

               CO_{2}(g) + C(graphite) \rightarrow 2CO(g)

Equilibrium constant for this reaction will be as follows.

             K_{c} = \frac{[CO_{2}]}{[CO]^{2}}

According to Le Chatelier's principle, when we increase the temperature then the equilibrium will shift towards the right hand side.

As a result, concentration of carbon dioxide will decrease whereas concentration of carbon monoxide will increase.

Thus, we can conclude that in the given reaction equilibrium constant for this reaction will decrease with increasing temperature.

 

8 0
3 years ago
3. Most tornadoes happen in the<br> (6 Points)<br> Midwest<br> Northeast<br> Southwest<br> Mideast
erica [24]
Most tornadoes happen in the midwest
6 0
3 years ago
Which of the following characteristics indicates that an atom is unstable?
elena55 [62]

Answer:

D

Explanation:

An atom can be considered unstable in one or two ways. If it pickes up or loses an electron,it becomes electrically charged and highly reactive.Intabability can also occur in the nucleus when the number of protons and neutrons is unbalanced.

8 0
3 years ago
Read 2 more answers
Other questions:
  • To minimize the sharp ph shift that occurs when a strong acid is added to a solution
    10·1 answer
  • Please help!!!!its due tomorrow !!!
    15·1 answer
  • Economics is about the production of goods and services which requires that allocation of what
    8·1 answer
  • Limiting Reactant Worksheet
    7·1 answer
  • Ethene is the first member of the
    15·1 answer
  • The Milky Way Galaxy is one of
    13·2 answers
  • What is the difference between mass number and atomic mass (sometimes also called atomic weight)? Boron has an atomic mass of 10
    12·1 answer
  • Zinc + Hydrochloric Acid → Zinc Chloride and Hydrogen Gas
    14·2 answers
  • Whay is life process? give any four example​
    8·2 answers
  • What is conductometric titration
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!