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
iren [92.7K]
3 years ago
12

An ideal gaseous reaction (which is a hypothetical gaseous reaction that conforms to the laws governing gas behavior) occurs at

a constant pressure of 50.0 atm and releases 73.2 kj of heat. before the reaction, the volume of the system was 7.60 l . after the reaction, the volume of the system was 2.00 l . calculate the total internal energy change, δe, in kilojoules. express your answer with the appropriate units.
Chemistry
1 answer:
pochemuha3 years ago
7 0

Total internal energy change is equals to -44.83kJ

Q=-73.2kJ (negative sign indicates that heat was released by the system),

P= 50.0atm

ΔU= Q + W, FIRST LAW OF THERMODYNAMICS..........(1)

ΔV= Final volume - initial volume= 2.00 litre - 7.60litre= -5.60litre

work done by the system (w)= -PΔV

w= -(50.0×(-5.60)) atm×litre=  280atm litre

1 atm litre= 101.325J

w= 280 ×101.325 J= 28,371J

1kJ=1000J,

w=28.37KJ,

so putting in the values in equation (1)...

energy change(ΔU) = -73.2 kJ + 28.37 kJ

= - 44.83 kJ

You might be interested in
) carbon + oxygen = _____________
scZoUnD [109]

Answer:

d)carbon(iv)oxide/carbon(ii)oxide

e)Calcium,carbon,oxygen

f)carnonhydride

g)Carbonhydrate

h)hydrogen+oxygen

I)Iron sulphide

j)Magnesiumoxide

m)magnesium hydroxide+hydrogen gas

d)carbon dioxide

7 0
4 years ago
Put the following elements in order of increasing atomic number:
melisa1 [442]

Answer:

Here is the answer ⬆️⬆️⬆️⬆️⬆️⬆️⬆️

5 0
3 years ago
Determine the pH of a 0.530 M solution of carbonic acid that has an acid dissociation constant of 4.4 x
Veronika [31]

Answer:

Explanation:

H2CO3  =  H+   +  HCO3-   H2CO3  =  0.530 M  Ka =4.4 X10^-7

Ka =[H+][A-]/[HA]        [H+] = [A-]

0.530 M x 4.4 X10^-7=  [H+}^2

2.32 X10^-7  =  [H+}^2

23.2 X10^-8 = [H+}^2

4.83 X 10^-4 = [H+]

pH = - log 4.83 X 10^-4

pH = -(.68-4)

pH =-(-3.32)

pH= 3.32

5 0
3 years ago
Read 2 more answers
When would scientists need to change a theory?
Artyom0805 [142]

Answer:

if it cannot be made to fit the new findings

3 0
3 years ago
Read 2 more answers
Which list includes only bulk properties of matter?
marta [7]
A bulk property is also an intensive property, meaning that it is a physical property that does not depend on the size of the system. examples of bulk properties are color, density, melting/boiling point, pressure, and solubility.
Based on your lists, choice d contains all bulk properties: boiling point, surface tension, vapour pressure.
3 0
3 years ago
Other questions:
  • Which of the following statements is true for an exothermic reaction?
    8·1 answer
  • Which element must be present in an organic compound?(1) hydrogen (3) carbon(2) oxygen (4) nitrogen
    10·2 answers
  • Do all cells share any common features
    6·1 answer
  • Which atom will gain electrons during ionic bonding?<br> a) Li<br> b) F <br> c) Mg<br> d) K
    14·1 answer
  • A dam is built in a remote area to provide electricity to nearby towns what is an unlikely effect of the dam
    12·2 answers
  • Calculate the molarity of each of the following solutions.
    12·1 answer
  • Describe how the r group in each of the 20 differebt amino acids determines each amino acid's characteristics
    13·1 answer
  • What is Mg(HSO3)2????
    15·2 answers
  • Shortly after the 2014 AFC Championship game between the New England Patriots and the Indianapolis Colts, the Patriots were accu
    13·2 answers
  • Which temperature scale was used if water froze at 273 degrees?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!