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
Ad libitum [116K]
3 years ago
9

As an athlete exercises, sweat is produced and evaporated to help maintain a proper body temperature. On average, an athlete los

es approximately 307 g of sweat during an hour of exercise. How much energy is needed to evaporate the sweat that is produced? The heat of vaporization for water is 2257J/g. energy required:
Chemistry
1 answer:
dmitriy555 [2]3 years ago
7 0

<u>Answer:</u> For the given amount of sweat lost, the amount of energy required will be 692,899 Joules.

<u>Explanation:</u>

We are given:

Heat of vaporization for water = 2257 J/g

Amount of sweat lost = 307 grams

Applying unitary method:

For 1 g of sweat lost, the energy required is 2257 Joules

So, for 307 grams of sweat lost, the energy required will be = \frac{2257J}{1g}\times 307g=692,899J

Hence, for the given amount of sweat lost, the amount of energy required will be 692,899 Joules.

You might be interested in
True or false: <br> The following equation is balanced properly: 6CO2 + 6H2O → C6H12O6 + O2
d1i1m1o1n [39]
No as oxygen is not balance
In reactants side there is 12 oxygen and in the product side there is 8 oxygen
6 0
3 years ago
Which of the following represent chemical properties? Check all that apply. Question 16 options: solubility flammability conduct
mars1129 [50]
Flammability, oxidation, odor, combustibility
8 0
3 years ago
Read 2 more answers
The reaction of C4H8 and Br2 to yield C4H2Br2 represents​
natima [27]

Answer:

A Synthesis Reaction

Explanation:

A + B --> AB

8 0
3 years ago
How much sugar does a bottle of sparkling water have help me plz it for a science project
zubka84 [21]

Answer:

it has 0g of sugar (hopes this helps)

3 0
3 years ago
Read 2 more answers
Please helppp I need 1 paragraph I’m about to go to school
kifflom [539]

The data on Climate change is as explained below-

Explanation:

Climate change is the ominous “hard truth” concurrently. However, it is not the first time that climate change is happening. In geological history, we find plenty of evidence of climate change.  

The most important and famous of all such changes is the climate change that occurred during the Mesozoic era leading to the extinction of Dinosaurus. The reason behind these all climate changes was different. However, the climate change we are witnessing at present has something extra to all this natural stuff.

The present climate change is fuelled by anthropogenic activities at large. Large scale emission of greenhouse gases possibly from burning of fossil fuels ever since the Industrial revolutions in the late 18th century has altered the chemical composition of atmospheric gases. In addition to the use of fossil fuels other activities such as agriculture, coal-based power plants, deforestation and other such activities have been instrumental in degrading the serene balance between different atmospheric gases.

The evidence of the present climate change can be gauged in-

  1. The rise in global average temperature-Earth’s mean temperature has risen by around 1° C ever since the 19th century. 2017 proved to be the warmest year in the record.
  2. Oceans have been net absorber of the heat. This has led to the warming up of oceans. This severely hampers and impact marine flora and fauna
  3. Deglaciation- the increasing temperature has manifested in the form of shrinking ice-sheets. Large icebergs are calving and thus has some serious long-term impact for the sustenance of mankind.
  4. Rise in the mean sea level- The sea level has risen by almost 10 inches since last century. This increase is all set to increase in future thus endangering the lives and livelihood of the coastal communities.

All the leading personalities of the time including the ex-president of the US Mr Barak Obama emphasised the importance of climate change and urged the global community to tackle it at earliest. In his words, he mentioned, “No other challenge poses as great a threat to the future generation as the climate change”. In addition to Mr Obama, noted climate activist Greta Thunberg described the climate change to be the greatest crisis to the humanity that it has ever faced.

Therefore, it can be safely argued that it’s urgent to talk and act tough on climate change. Climate change has transitioned into a multi-headed monster capable enough to devastate the entire mankind. It has done this earlier and sure to carry it further on.

3 0
3 years ago
Other questions:
  • Which is not a property covalent bonds ?
    8·1 answer
  • What do you call material formed by weathering that is then eroded and deposited
    9·1 answer
  • A solution containing HCI would likely have
    6·2 answers
  • Given the following equation:
    11·1 answer
  • Determine the rate of a reaction that follows the rate law:
    13·2 answers
  • Write the molecular and net ionic equations, including phases, for the reaction that occurs between aqueous sodium chloride, NaC
    5·2 answers
  • How can the hemlock woolly upset natural ecosystem?
    15·1 answer
  • 2. The protons and neutrons are both located in the nucleus of an atom. *<br> True<br> False
    10·1 answer
  • Halogens are found in column 17. They are also referred to as the Fluorine
    9·1 answer
  • One of the compounds used to increase the octane rating of gasoline is toluene (right). Suppose 20.0 mL of toluene (d = 0.867 g/
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!