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
zvonat [6]
3 years ago
12

What is the change of entropy for a heat engine using 500.0j at 20.0c

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
8 0

The formula to find change in entropy is given by :

Change in entropy = \frac{Q}{T}

where Q is change in heat and T is temperature.

We are given Q = 500 joule and T = 20 degree C

Plugging these values in the formula,

Change in entropy = \frac{500}{20}

We get change in entropy = 25 J/Celsius.


Natasha_Volkova [10]3 years ago
3 0
1.71 J/K 
hope it helps :D!!
You might be interested in
I need it done asap please help before 12:00
Gnoma [55]
That would be the y-axis
8 0
2 years ago
Which is a true statement about any two congruent chords in a circle? A.They are parallel. B.They are perpendicular. C.They form
Tom [10]
Its D. they are equidistant from the center of the circle , just took the test and that was the answer on apex
7 0
3 years ago
Read 2 more answers
Mrs. Bonilla is a saleswoman at a furniture store. Her commission on rugs is 10% and her commission on furniture is 15%. Her goa
lara31 [8.8K]
<span>so here is how you can answer this: 

Your commission must be equal to the sum of the 10% of the value of the rug and the 15% of the value of the furniture and equate this to the value of your commission. Translate this to a mathematical equation, you would get, 

Commission = (10%) (value of rugs) + (15%) (value of furniture).
substituting the known values, 
 
5000 =.1 * x + .15 * 12500.

Now it's a matter of finding for x. You should get, 

 x = $31,250.</span>
8 0
3 years ago
There are 273 students in the 7th grade. If the
Elanso [62]

Answer:

Each teacher will have 21 students

Step-by-step explanation:

273 divded by 21 = 21

4 0
3 years ago
Read 2 more answers
Scott and Harry went cycling every day. They increased the number of minutes of cycling every week as described below:
djyliett [7]

Answer:

(A)

Step-by-step explanation:

Scott cycled for 10 minutes in first week, 15 minutes in second week,20 minutes in third week and 25 minutes in the fourth week which maintains a consistency in the line as there is consistent slope when drawn on a graph.

On, the other hand, harry cycled for 10 minutes in first week, 20 minutes in second, 40 minutes in third and 80 minutes in fourth week in which there is no consistency in the timings according to the weeks. Therefore, only, scott's method is linear as the number of minutes increased by an equal factor every week.

4 0
4 years ago
Read 2 more answers
Other questions:
  • The measure of angle DAB = 132. The measure of angle ABC = 81. What is the measure of angle BCA
    14·1 answer
  • Which statement is true about whether A or B are independent events
    8·2 answers
  • Write the following numbers in scientific notation 2040000
    11·2 answers
  • A new car loses value at a constant rate. You purchase a new car for $21,500. After 3 years the value of the car was $14,120. Wh
    12·1 answer
  • What’s the answer to the question -7x + 15 = 36
    14·1 answer
  • Find the retail price if original cost is $45 and markup 20%
    5·2 answers
  • The sum of three consecutive odd integers is -39. What is the largest integer? ​
    13·1 answer
  • PLEASE ANSWER QUICKLY!!
    9·2 answers
  • Put these in order from GREATEST to LEAST
    7·2 answers
  • PLEASE HELP! WILL GIVE BRAINLY
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!