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
saw5 [17]
3 years ago
7

The heating curve of an ice-water mixture that is slowly heated to 125°C contains three sloped and two level portions. What do t

he two level portions in the graph represent?
Biology
2 answers:
Mice21 [21]3 years ago
8 0

Answer:

The answer is heating.

Explanation:

scZoUnD [109]3 years ago
4 0
The 2 level portion in the graph represents the changing of state.

Every substance has internal energy, which includes kinetic energy and potential energy. Kinetic energy means the temperature, and the potential energy means the bondings or attractions.

When a substance is heated up, they first increase their temperature as the same state. For example, the ice starts at - 5 °C, they won't start melting immediately as they're not at their melting point yet. Instead, they first absorb heat and increase their temperature to 0°C. This is same for when water increase their temperature until their boiling point. Their kinetic energy is increasing, but potential energy is unchanged as they stay at the same state. That's why the slope is increasing.

However, but once the ice or water has reached their melting or boiling point, they have to go through a state change. During that time, they do not increase their temperature (K.E. unchanged) . Instead, the heat they absorbed is used to increase the potential energy to break the bonds and turn into another state. The heat absorbed is called latent heat.

This explains why in the graph, there's 2 level portions, as the substance is going through a state change and increasing their potential energy instead of their kinetic energy (temperature)
You might be interested in
Will award 70 points!
Verizon [17]

Answer:

Net photosynthesis- 3mm/20min- 1.5mm/10min

Cellular respiration- 1mm/15min- 0.66mm/10min

Gross photosynthesis = Net photosynthesis + Cellular respiration = 1.5+0.66 = 2.16 (mm/10min)

Rate of photosynthesis = (gross photosynthesis)6 = 2.16 *6 = 12.96 mm/hr

As we are measuring rate of photosynthesis in hr ,we should multiply gross photosynthesis with 6 (as we measured gross photosynthesis for 10 min).

Explanation:

4 0
2 years ago
How to graph this concentration vs Rate of Reaction
SOVA2 [1]

Plotting a graph of the mass or volume of the product created against time allows you to determine the reaction's pace. This is depicted for two reactions on the graph. The rate of reaction is inversely proportional to the gradient of the line; that is, the steeper the line, the higher the rate of reaction

<h3>What is Rate of reaction ?</h3>

The result is a straight line with a positive gradient on a graph of reaction rate against concentration (a graph showing proportionality).

  • The half-life is constant in a concentration-time graph of first order. As a result, the period of time it takes for the concentration to decrease to 50% of its initial value is constant.

  • It would be considered first order if you obtained a straight line with a negative slope. If you graph the inverse of the concentration for second order

Learn more about Rate of reaction here:

brainly.com/question/24795637

#SPJ9

3 0
1 year ago
Type your response in the box.
NikAS [45]
FISH levels and low estrogen levels.
4 0
3 years ago
Read 2 more answers
Which of the following is true regarding lipids? *<br> 1 point
zhannawk [14.2K]

Answer:

there are no answers, you can put them in the comments

Explanation:

3 0
3 years ago
ASAP! Help, please!! 30 points!!!
zzz [600]

Answer: change in solar output.

4 0
3 years ago
Other questions:
  • One watershed can encompass another watershed.<br><br> True<br> False
    11·1 answer
  • The term andropause, or male menopause, is sometimes used to refer to _____.
    12·1 answer
  • K<br><br> Name the element:<br><br> Number of shells?<br><br> Valence electrons?
    14·1 answer
  • Give Reasons<br>why addation of<br>acid<br>to a DNA solution causes a change<br>in its absorbance.​
    5·1 answer
  • What kinds of work do MBBS doctors do?
    12·1 answer
  • Which part of the shallow ocean descends sharply away from the continental shelf? abyssal plain mid-ocean ridge transitional zon
    12·2 answers
  • List all the seven continenets
    9·2 answers
  • The Mid-Atlantic ridge is a type of
    12·1 answer
  • Is there always enough rainfall in the island for gardening?
    11·1 answer
  • What do epidemiologists study?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!