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
DENIUS [597]
3 years ago
12

Consider the change given below. At constant pressure, is work done by the system on the surroundings? By the surroundings on th

e system? Or is no work done? Hg(l) → Hg(g)
Chemistry
1 answer:
alexira [117]3 years ago
7 0

Answer : At constant pressure work is done by the system on the surroundings.

Explanation :

Work done : Any quantity that flows across the boundary of a system during a change in its state and it completely convertible into the lifting of a weight in the surroundings.

Formula for work done is:

w=-p_{ext}dV

Sign convention :

  • When volume expand then system work that means work done by the system.

w = (-ve)

  • When volume compress then surrounding work that means work done on the system.

w = (+ve)

The given reaction is:

Hg(l)\rightarrow Hg(g)

This is a evaporation process in which phase changes from liquid state to gaseous state at constant temperature.

At constant pressure, work depends only on volume.

In evaporation process, the volume expand that means work is done by the system on the surroundings.

Sign convention is, w = (-ve)

Thus, at constant pressure work is done by the system on the surroundings.

You might be interested in
How are you! :D I hope your doing good
Tanya [424]

Answer:

Yeah, Fine..

Explanation:

5 0
3 years ago
heyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
jeka94
The answer is Heyyy friend in know because I took the test
4 0
3 years ago
A student wants to determine what type of cereal his classmates like best he buys three of his favorite puffed rice cereals and
kogti [31]
D. the student's conclusion shows experimental bias
4 0
3 years ago
Be sure to answer all parts. Part 1 out of 2 how many electrophilic centers are present in acetyl chloride (ch3cocl)?
natima [27]
<h3>Answer:</h3>

            There is One electrophilic center in acetyl chloride.

<h3>Explanation:</h3>

                    Electrophile is defined as any specie which is electron deficient and is in need of electrons to complete its electron density or octet. The main two types of electrophiles are those species which either contain positive charge (i.e. NO₂⁺, Cl⁺, Br⁺ e.t.c) or partial positive charge like that contained by the sp² hybridized carbon of acetyl chloride shown below in attached picture.

                    In acetyl chloride the partial positive charge on sp² hybridized carbon is generated due to its direct bonding to highly electronegative elements *with partial negative charge) like oxygen and chlorine, which tend to pull the electron density from carbon atom making it electron deficient and a good electrophile for incoming nucleophile as a center of attack.

7 0
3 years ago
Which compares the problem associated with radioactive waste created from generating electricity using fusion reactions to waste
uysha [10]

Answer:

hello good person

Explanation:

8 0
3 years ago
Other questions:
  • A mixture containing nitrogen and hydrogen weighs 3.49 g and occupies a volume of 7.45 L at 305 K and 1.03 atm. Calculate the ma
    6·1 answer
  • Lead(2) sulfate yields to lead(2)sulfite and oxygen
    14·1 answer
  • What is the basic unit for measuring length
    10·2 answers
  • As you climb through the troposphere, the temperature:
    10·1 answer
  • True or false: The elements in a group of the periodic table have similar characteristics
    14·1 answer
  • A) Which of the following reagents would oxidize Cr to Cr2 , but not Fe to Fe3 ?
    5·1 answer
  • write the chemical equation for the following reaction: the elements carbon and oxygen combine to yield the compound carbon diox
    5·2 answers
  • What are the two types of numbers in experimental calculations?
    12·1 answer
  • HELP I WILL mark brainliest
    6·1 answer
  • ethanol and benzene dissolve in each other. when ml of ethanol is dissolved in l of benzene, what is the mass of the mixture?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!