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
borishaifa [10]
2 years ago
6

What is the change in enthalpy when 11. 0 g of liquid mercury is heated by 15°c?

Chemistry
1 answer:
Vlad1618 [11]2 years ago
6 0

Enthalpy change is the difference between energy used and energy gained. The change in enthalpy of the liquid mercury is 0.0231 kJ.

<h3>What is the enthalpy change?</h3>

Enthalpy change is the difference between the energy used to break chemical bonds and the energy gained by the products formed in a chemical reaction.

The enthalpy change is given by,

\rm \Delta H_{rxn} = \rm q_{rxn}

and,

\rm q = mc\Delta T

Given,

Mass of the liquid mercury (m) = 11.0 gm

The specific heat of mercury (c) = 0.14 J per g per degree Celsius

Temperature change = 15 degrees Celsius

Enthalpy change is calculated as:

\begin{aligned} \rm q &= \rm mc\Delta T\\\\&= 11 \times 0.14 \times 15\\\\&= 23.1 \;\rm J\end{aligned}

Therefore, 0.0231 kJ is the change in enthalpy.

Learn more about enthalpy change here:

brainly.com/question/10932978

#SPJ4

You might be interested in
Im gonna ride it do it just how you like it and after that let's do it?
Reika [66]

Answer:

the hell?

Explanation:

7 0
2 years ago
Read 2 more answers
What is the difference between an atom and an element?
Travka [436]

Answer:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom

Explanation:

so In simple terms an atom contains Protons and Electrons and can be found in an Element, but an element comprises of atoms which come together to form up that particular Element

4 0
3 years ago
4. In the following, how many digits should be in the solution to have the proper number of sig figs?
yan [13]

Answer:

i guess b maybe the answer

4 0
3 years ago
Calculate the mols for 4.2g of a Mg<br>​
hjlf

Answer:

0.175mol

Explanation:

Mole of a substance can be calculated using the formula as follows:

number of moles (n) = mass (m) ÷ molar mass (MM)

According to this question, there are 4.2g of Magnesium (Mg).

Molar mass of Magnesium = 24g/mol, hence, the number of moles of 4.2g of Mg is as follows:

n = 4.2g ÷ 24g/mol

n = 0.175mol

8 0
2 years ago
What is another name for the representative elements?
jeka94

Answer:

Group A elements or the main group

Another name for the representative elements are  the Group A elements or the main group elements

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose 4 moles of a react with excess amount of b to produce 382.5 g of c, calculate the percent yield of
    14·1 answer
  • Which of these statements best explains why the ocean currents in the Northern hemisphere tend to move in the clock-wise directi
    11·1 answer
  • Im giving out the game the last of us part 2 who wants it
    14·2 answers
  • How much heat is absorbed during production of 136 g of NO by the combination of nitrogen and oxygen?
    10·1 answer
  • Draw a molecular model of sulfur trioxide.
    6·1 answer
  • List the three general classes of chemical reactions
    7·1 answer
  • What does acetic mean​
    6·2 answers
  • 12. What is the empirical formula for C10H30O5?
    9·1 answer
  • How many moles of sodium atoms do you have if you have 5.60 ~
    7·1 answer
  • By how much will the water temperature increases if 1046 J of heat energy are added. The specific heat of water is 4.184 J/g • °
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!