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
Anettt [7]
3 years ago
9

If 5,800 j of energy are applied to a 15.2 kg piece of lead, by how much does the temp change if the specific heat of lead is 0.

128
Chemistry
1 answer:
scoray [572]3 years ago
7 0

Answer:

The answer will be 2.98K

Explanation:

Using the formula:

Q = mc∆T

Q= 5,800 (heat in joules)

m= convert 15.2kg to g which is 15200g (mass in grams)

c= 0.128 J/g °c (Specific heat capacity)

∆T=  what we need to find (temperature change)

5800J = 15200g x 0.128 x ∆T

= 2.98K  

You might be interested in
600.0 mL of air is at 20.0 Celsius. What is the volume of the same air at 60.0 Celsius
REY [17]

Answer:

0.682L or 682mL

Use Charles Law of V1/T1 = V2/T2

V1 = 0.6L

T1 = 293K

V2=?

T2= 333K

Explanation:

?

6 0
3 years ago
240 g of water (specific heat = 4.186 J/g°C, initial temperature = 20°C) is mixed with an
ivolga24 [154]
The answer for this would be 69.6
3 0
3 years ago
3Fe+4H2O(yields) Fe3O4+4H2. What is the mole ratio of Fe3O4 to Fe?
WINSTONCH [101]

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

Mole ratio is defined as the ratio between the stoichiometric coefficients of the molecules present in the chemical reaction.

For the given balanced chemical equation:

3Fe+4H_2O\rightarrow Fe_3O_4+4H_2

By Stoichiometry of the reaction:

3 moles of iron metal reacts with 4 moles of water to produce 1 mole of iron oxide and 4 moles of hydrogen gas.

The mole ratio of Fe_3O_4:Fe=1:3

Hence, the correct answer is Option A.

7 0
3 years ago
Read 2 more answers
Please help with 2 chem questions thank you!
xeze [42]
The correct answers are A and C.
8 0
3 years ago
Read 2 more answers
How many moles are present in 2.45 x 1023 molecules of CH ?
Phantasy [73]

Answer:

the aware is 6182

Explanation:

jejejieieiejeie

4 0
3 years ago
Other questions:
  • In beta decay, what is emitted?
    6·1 answer
  • La primera célula de un nuevo ser es
    8·1 answer
  • 1. Directions: Select each correct answer.
    5·2 answers
  • Which planets distance from the sun is 778,600,000
    12·1 answer
  • Soda is a mixture. The ingredients list for a can of soda is given below.
    14·2 answers
  • What is a siesmograph
    12·1 answer
  • The rainforest contains what percentage of all of the species in the world?
    13·2 answers
  • Someone please help me with this????
    9·1 answer
  • It exists between polar covalent molecules
    12·1 answer
  • What can you tell about a solution by using a phenolphthalein solution?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!