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
MA_775_DIABLO [31]
3 years ago
12

How much energy is required to completely vaporize 250 grams of liquid water that is already at 100 degrees Celsius? Show your w

ork & units. Expected Answer = 565,000 J

Chemistry
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:

564100J (~ 565000J) of heat energy is required.

Explanation:

The enthalpy of vaporization of water is 2256.4J/g, meaning that 2256.4J of heat is required to convert 1 gram of water at 100 degrees Celcius to steam at 100 degrees Celcius.

In your case, we have 250g of water at 100C and we want to vaporize it to steam (also at 100C).

This requires ΔH = 2256.4(250) = 564100J of heat energy.

You might be interested in
How many kg are in 50 lb luggage bag
Darya [45]
There are 0.454 kg in 1 lb

Cross multiply

0.454 kg = 1 lb
X kg. = 50 lb

50* 0.454 = 22.7 kg

Answer : 22.7 kg in 50 lbs
7 0
3 years ago
Read 2 more answers
HELpPPPPppp!!!!!! will mark brainless
ANTONII [103]

Answer:

A

Explanation:

This is because in the graph shown line A has a quite greater impact of refraction than line B .

Hence, we can conclude that line A has the greater reaction at a faster rate.

6 0
3 years ago
two samples of water, 10 grams and 50 grams are in sperate cups which of the following properties is different for the two boili
Trava [24]

Answer:

volume

Explanation:

The volume of the two samples of water will be different because volume is the amount of space occupied by a body. It is dependent on the amount of materials it contains.

  • The 50g sample will have a higher volume compared to the 10g sample.
  • The boiling point and density are intensive properties and do not depend on the amount of matter present.
  • Since both samples are from the same source, they will have the same color.
7 0
3 years ago
Read 2 more answers
Suppose you carry out a titration involving 2.50 molar NaOH and an unknown concentration of HBr. To bring the reaction to its en
givi [52]

Answer:

B

Explanation:

Brainly Patrol ima stop you here

7 0
2 years ago
Suppose the flask is already at equilibrium but then the volume of the reaction flask is then reduced what will happen
sveta [45]

1) Answer is: c) The reaction will proceed right.

Balanced chemical reaction: N₂(g) + 3H₂(g) ⇄ 2NH₃(g) ΔH = +92 kJ.

Reducing the volume of the system increase the partial pressures of the products and reactants.

With a pressure increase due to a decrease in volume, the side of the equilibrium with fewer moles is more favorable, there are 4 moles at the left side (three moles of hydrogen and one mole of nitrogen) and 2 moles (ammonia) at the right side of the reaction.

2) Answer is: d) The partial pressure of ammonia will increase.

This reaction is endothermic (enthalpy is higher than zero), which means that heat is added.

According to Le Chatelier's principle when the reaction is endothermic heat is included as a reactant and when the temperature increased, the heat of the system increase, so the system consume some of that heat by shifting the equilibrium to the right,  producing more ammonia.

8 0
3 years ago
Other questions:
  • Perform the following
    13·1 answer
  • A thermos bottle (Dewar vessel) has an evacuated space between its inner and outer walls to diminish the rate of transfer of the
    15·1 answer
  • How concentrated can lye solution be before its ph rises above calcium hydroxide saturated water?
    9·1 answer
  • What concentration of nh4no3 is required to make [oh− ] = 1.0 × 10−5 in a 0.200-m solution of nh3?
    6·2 answers
  • What is the product of an addition reaction between butanal, ch3−ch2−ch2−cho, and water?
    12·1 answer
  • What changes would occur at a molecular level if a liquid is placed in cool conditions?
    15·1 answer
  • urgent please help!!!!!! Which factors add to the greenhouse effect and are caused by human activities? Select two options. a de
    15·1 answer
  • Are new atoms made during a chemical reaction?
    10·1 answer
  • What action should be performed when heating a solid to dryness to prevent spattering caused by bumping
    6·1 answer
  • 1. Swimming pool manufacturers recommend maintaining the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!