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
avanturin [10]
2 years ago
5

you have a reservoir held at a constant temperature of –30°c. you add 400 j of heat to the reservoir. if you have another reserv

oir at 0°c, how much heat must you add to it so that both reservoirs have the same increase in entropy? (1 point)
Chemistry
1 answer:
e-lub [12.9K]2 years ago
5 0

449.38 Joule  of heat must be added up to the second reservoir to make both reservoirs have the same increase in entropy.

Entropy is the measure of systems thermal energy per unit temperature.

Mathematically,

        Entropy = \frac{Heat}{Temperature}

            ΔS =  \frac{Q}{T_{Avg} }

  For reservoir first ,

Q (heat) =  400 J

Temperature =  -30°  C  = -30° +  273 K

                        =  243K

Therefore ,

                   ΔS = \frac{400}{243} J/K

For second reservoir,

Q = ?

Temperature  = 0° C + 273°

                       = 273 K

ΔS = \frac{Q}{273}

According to question, Entropy of both the systems are same

Therefore,

           \frac{Q}{273} =  \frac{400}{243} J/K

           Q =  \frac{400*273}{243}   J  

           Q = 449.38 J

To know more about Entropy,

brainly.com/question/1859555

#SPJ4

You might be interested in
Aluminium and potassium nitrate will not react when mixed together?
Stels [109]

Answer:

they would react to make aluminum oxide and nitrogen

Explanation:

hope this helps plz mark as brainliest

7 0
3 years ago
Read 2 more answers
What is the element name for K2S
aliya0001 [1]
~The picture below shall help :)
-Hope this helped ^_^

5 0
3 years ago
Read 2 more answers
Determine the volume of 12.3 grams of formaldehyde gas at STP?
postnew [5]
9.184 liters CH2O at STP

I think this is correct. Good luck
3 0
3 years ago
Read 2 more answers
A 21.0 kg child is running at a velocity of 2.50 m/s. The child is carrying a 2.25 kg gallon of milk. What is the momentum of th
KIM [24]

Answer: The momentum of the child and milk together is 58.125 kg.m/s

Explanation:

Momentum is defined as the product of object's mass and velocity.

Mathematically,

p=mv

where, p = momentum

m = mass of the object

v = velocity of the object

In the given question, we are given that a child of mass 21.0 kg is carrying a gallon of milk having mass 2.25 kg and running with a velocity of 2.5 m/s. Hence, the momentum by both milk and child will be:

p=(m_{child}+m_{milk})v     ....(1)

Given:

m_{child}=21.0kg\\m_{milk}=2.25kg\\v=2.5m/s\\p=?kg.m/s

Putting values in equation 1, we get:

p=(21+2.25)kg\times 2.5m/s=58.125kg.m/s

Hence, the momentum of the child and milk together is 58.125 kg.m/s

7 0
3 years ago
Crack is manufactured by using _________________________ to remove hydrochlorides to create a crystaline form of cocaine that ca
Akimi4 [234]

Answer:Sodium Bicarbonate

Explanation:Crack is manufactured by using Sodium Bicarbonate (NaHCO3) to remove hydrochlorides to create a crystalline form of cocaine that can be smoked.

3 0
3 years ago
Other questions:
  • How can understanding atomic light help astronomers determine what planets are composed of?
    15·1 answer
  • Animals and plants need to maintain homeostasis to function properly.<br><br> A)True<br> B)False
    15·2 answers
  • Two reasons why scientists create models to study atoms
    13·1 answer
  • A mining crew extracted two different types of minerals from underground.
    8·2 answers
  • 6Atoms of which of the following elements will
    11·1 answer
  • What frequency corresponds to an absorption line at 460 nm?
    9·1 answer
  • E=hv h= 6.62 x 10^-34 m^2 kg/ s
    13·1 answer
  • Describe the components of a speaker and explain how it produces sound. In particular, explain how the force on a current-carryi
    5·1 answer
  • Which process is characterized by the movement of particles?.
    15·2 answers
  • select the correct answer from each drop down menu how do you the freezing point and boiling point of a solution compare with th
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!