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
Alex777 [14]
3 years ago
6

Calculate the number of joules released when 0.64 grams of steam (c = 2.04 l/g

Chemistry
1 answer:
allochka39001 [22]3 years ago
7 0
The number  of  joules  released  when  0.64g  of   steam  are  cooled  from 125 c  to 105  c is  -26.112  joules

      calculation
by  use of Q=MCΔ T  formula  calculate the  joules released  where
Q( heat) =?
M (mass) =  0.64 g
C (specific heat capacity = 2.04 j/g/c
ΔT(change  in temperature) =  105-125 =-20c

Q  is  therefore = 0.64 g   x2.04 j/g/c x -20  c = -26.112  joules

it  is okay  to have negative value  since  the  reaction   is exothermic that  is heat  is  released


You might be interested in
Select the correct answer.
solong [7]
I think it’s A but I’m not sure, if it’s wrong I’m sorry
7 0
3 years ago
In addition to not causing damage to the sample, what is another advantage of using a microspectrophotometer to analyze fibers?
Tems11 [23]

Another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.

<h3>What is a microspectrophotometer?</h3>

Microspectrophotometry is a biological technique used to measure the absorption or transmission spectrum of a solid or liquid material in either transmitted or reflected light.

Microspectrophotometry can also measure the emission of light by a sample, which is usually small as the micro implies.

One advantage of microspectrophotometry is that the sample does not get damaged. However,

However, another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.

Learn more about microspectrophotometry at: brainly.com/question/5832827

5 0
2 years ago
Which organism is a tertiary consumer?<br> clownfish<br> brittle star<br> killer whale<br> octopus
vlada-n [284]

Answer:

killer whale

Explanation:

7 0
3 years ago
Read 2 more answers
A solid block of wood has a mass of 132.5kg and a
Rasek [7]

Answer:

Kjiiii99i9oojiiiiiiiii88

3 0
3 years ago
The more impressive the tail of a male peacock, the higher its chances of finding a mate. Female peacocks choose mates based on
Kipish [7]

C i took the test and got it correct

5 0
2 years ago
Other questions:
  • A scientist is examining a mixture of nitrogen, hydrogen, and ammonia. The individual pressures that are exerted by nitrogen and
    12·2 answers
  • When the sentence best describes mass movement
    11·1 answer
  • The unique odors and flavors of many fruits are primarily due to small quantities of a certain class of organic compounds. The e
    14·1 answer
  • How is science used by a firefighter
    7·1 answer
  • The ability to conduct electricity in the solid state is a characteristic of metallic bonding. This characteristic is best expla
    6·1 answer
  • Convert 15.5 pounds to kilograms. Please and thank you so much!!
    10·2 answers
  • I NEED HELP PLEASE ASAP!! :)<br><br> How many molecules are represented by 3CO2?
    8·2 answers
  • Name a machine used to reap, thresh and clean the crop.<br>i will give brainliest who answers first
    5·1 answer
  • HELPPP PLEASE !/!/!/!/!/!/!/!
    9·1 answer
  • Hi how are you guys doing today???
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!