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
bonufazy [111]
2 years ago
7

1.

Chemistry
1 answer:
IceJOKER [234]2 years ago
4 0

Answer:

565 kJ

Explanation:

H_v = Heat of vaporization of water at 100°C = 2260 J/g

m = Mass of water = 250 g

Heat required is given by

Q=mH_v

\Rightarrow Q=250\times 2260

\Rightarrow Q=565000\ \text{J}

\Rightarrow Q=565\times 10^3\ \text{J}

\Rightarrow Q=565\ \text{kJ}

The heat required to vaporize the water is 565 kJ.

You might be interested in
When completing an experiment, results will be much more accurate if multiple trials are completed and the results averaged. TRU
grandymaker [24]
<span>When completing an experiment, results will be much more accurate if multiple trials are completed and the results averaged. True. That's because you may get different results each time. </span>
5 0
3 years ago
Read 2 more answers
Each Thursday the 11 kindergarten students in Miss Goodson's class are each allowed one slice of pie, one cup of orange juice, a
mixas84 [53]

How many were there to start off with?

4 0
3 years ago
aluminum has a density or 2.7g/cm3. copper has a density of 8.96/cm3. which metal would you choose to build a model airplane?
erik [133]

Answer: Aluminium

Explanation: Aluminium metal has a lower density than copper. So, for the same volume of metal used to build a model airplane, the aluminium plane would be very lightweight while that of copper would be heavy.  The lightweight airplane will fly easily.

7 0
3 years ago
When magnesium reacts with hydrochloric acid, hydrogen gas is produced. The amount of gas produced is dependent upon the concent
velikii [3]

Answer:

why do you need human rights ! write in a sentence

7 0
2 years ago
Which living thing would u expect to find in a swamp
stich3 [128]

Alligators, Crocodiles, Anacondas, Beavers, Fish , Frogs and MANY more.



~mathnerdz

6 0
3 years ago
Other questions:
  • Choose the aqueous solution below with the highest freezing point. These are all solutions of nonvolatile solutes and you should
    9·1 answer
  • The distance between the earth and the sun is 90.0 million miles . calculate this distance in meters up to three significant dig
    15·1 answer
  • How to determine the number of valence electrons using the As and Bs system
    12·1 answer
  • An intense emission line for a new element is observed at a wavelength of 675 nm. What is the energy of a single photon of this
    14·1 answer
  • What is the oxidation number of an element?
    14·1 answer
  • The pKa of a solution is defined by the equation pKa=-log Ka
    10·1 answer
  • A 49.7 mL sample of gas in the cylinder is warm from 20°C to 92°C. What is the volume of the final temperature
    11·1 answer
  • Can someone please answer this?
    11·2 answers
  • Which of the following is true of solutes dissolving in water?
    6·1 answer
  • The molar mass of K2S is<br> 110.27 g/mol. What is the mass<br> of 2.75 moles K2S?<br> [?] g K₂S
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!