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
hoa [83]
3 years ago
13

50 J of work was done on a system, as a result of which 29 J of heat energy was removed from it. How would this affect the inter

nal energy of the system? A) The internal energy of the system would decrease by 21 J. B) The internal energy of the system would increase by 21 J. C) The internal energy of the system would decrease by 79 J. D) The internal energy of the system would increase by 79 J.
Chemistry
2 answers:
cricket20 [7]3 years ago
3 0
  • Work done=50J
  • Heat removed=29J

Now

\\ \sf\longmapsto \Delta E=50-29

\\ \sf\longmapsto \Delta E=21J

  • Hence the internal energy would increase by 21J

Option B is correct

sergeinik [125]3 years ago
3 0

Answer:

i would say a because it makes sense i mean so does b but i think it is a or b but i think a

Explanation:

You might be interested in
Which statement best describes a solution? A). a mixture consisting of minute particles suspended in a medium that start moving
makvit [3.9K]
The statement that best describes a solution is the option C: a mixture having a uniform composition where the components cannot be seen separately and all components are in the same state.<span> That is exactly what a solution is: a homogeneous mixture, the composition is uniform, but it can vary from one solution to other. The components must be in the safe phase, but it can be any phase: solid, liquid or gas. The most classical and clear example is the salt solution, NaCl. When you dissolve a spoon of NaCl in water you will not be able to distinguish nor separating the solute from the solvent, and the mixture will have uniform composition.</span>
3 0
3 years ago
Which of these is a characteristic of chemical change?
Bond [772]
The correct answer is c, it’s evaporating there for it’s a chemical change
8 0
2 years ago
What do you call a circuit with only one path
DanielleElmas [232]
If I'm correct the answer should be a series circuit :) Hopefully this helps you out
3 0
3 years ago
Can u please help me with these 2 answers!
Lelu [443]
5 is 2 I’m not sure about 4 though....
5 0
3 years ago
Physostigmine, an alkaloid obtained from a West African plant (Physotigma venenosum),is used in the treatment of glaucoma. Treat
ozzi

Answer:

The structure of the salt is attached.

Explanation:

Physostigmine, an alkaloid obtained from a West African plant (Physotigma venenosum),is used in the treatment of glaucoma. Treatment of physostigmine with methyl iodide gives a quaternary ammonium salt. What is the structure of this salt?

The structure of the salt is attached

8 0
3 years ago
Other questions:
  • The water in a 2500-L aquarium contains 1.25 g of copper. Calculate the concentration of copper in the water in ppm (remember 1
    14·1 answer
  • A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 10
    5·1 answer
  • What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants
    14·2 answers
  • Select all the correct images, select the two atomic models that belong to the same element.
    11·1 answer
  • What coefficients would complete the equation,__K+__Cl2--&gt;__KCL
    7·1 answer
  • PJ’s unknown solid 1) dissolves in hot ethanol, 2) is essentially insoluble in hexane, and 3) is insoluble in cold water, but sp
    14·1 answer
  • If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper?
    6·2 answers
  • A student is participating in the school science fair. She wants to investigate household cleaners.
    7·2 answers
  • Help me please!! :D​
    14·1 answer
  • What are the elements in the first period
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!