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
AnnyKZ [126]
3 years ago
5

A 27.40 g sample of liquid mercury is initially at 158.30°C. If the sample is heated at constant pressure ( = 1 atm), kJ of ener

gy are needed to raise the temperature of the sample to 376.20°C. How much energy in kJ is required?
Chemistry
1 answer:
inna [77]3 years ago
8 0

Answer:

energy required is 0.247kJ

Explanation:

The formula to use is Energy = nRdT;

Where n is number of mole

R is the molar gas constant

dT is the change in temperature

n = reacting mass of mercury / molar mass of mercury = 27.4/200.59 = 0.137

dT = final temperature - initial temperature = 376.20 - 158.30 = 217.90K

R = 8.314Jper mol per Kelvin

Energy = 0.137 x 8.314 x 217.90 = 247.12J

Energy in kJ= 247.12/1000= 0.247kJ

You might be interested in
Quais são as funções que o sangue desempenha em nosso organismo
TiliK225 [7]

Answer:

Explanation:

Blood is an essential part of the circulatory system in the human body. The main function of blood is that it helps to transport materials to different parts of the body where they are need. Blood helps carry waste materials of metabolism from where they are produced to the excretory system. It helps carry oxygen round the body system and it takes out carbon dioxide that is not needed by the body.

Some part of the blood sees to fighting foreign bodies in the system. They are called whiteblood cells. There is no immune system without the white blood cells.

5 0
3 years ago
How many atoms are in 4.5 g of gold? Answer in units of atoms.
Travka [436]
<span>1.4 x 10^22 atoms is the answers

</span>
6 0
3 years ago
What is the correct name of CUCIO2<br> Chemistry
Deffense [45]

Answer:

Copper(II) Chlorite = Cu(ClO2)

Explanation:

how you write the compound is very important as well

5 0
3 years ago
Please go to this link... I've been waiting for someone to answer for 4 hours...
Charra [1.4K]
On my way! to find the answer
6 0
4 years ago
At which point does the roller coaster have very little kinetic energy and very little potential energy ?
Nana76 [90]
When it would be on a flat area with no slope. and no movement
6 0
4 years ago
Read 2 more answers
Other questions:
  • What volume in mL of a 0.763 M solution of BaI2 would be required if you wanted 0.0131 moles of solute? _____ mL (Picture Attach
    8·1 answer
  • What element is used in microwave equipment?
    10·1 answer
  • I need help asap please i have this lab and the lab report is very difficult someone please help me
    10·1 answer
  • CHEMISTRY HELP PLEASE!!! Titrations
    15·1 answer
  • How many grams of calcium chloride will be produced when 28.0 g 28.0 g of calcium carbonate is combined with 14.0 g 14.0 g of hy
    14·2 answers
  • Where are the products as part of a chemical reaction?
    13·1 answer
  • I need all these im not in the mood for it toddayyy
    5·1 answer
  • When carbon is in the atmosphere, what form is it in?
    12·2 answers
  • I am lonely I need anime weebs
    14·2 answers
  • What is the chemical formula of water ?<br><br><br><br>...❤️♠️​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!