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
Ann [662]
1 year ago
5

A balloonist begins a trip in a helium-filled balloon in early morning when the temperature is 15°C. By mid-afternoon, the tempe

rature is 30.°C. Assuming the pressure remains at 1.00 atm, for each mole of helium, calculate the following:
(f)  Explain the relationship between the answers to parts (d) and (e).
Chemistry
1 answer:
german1 year ago
5 0

The relationship between the answers to parts (d) and (e) is given that the system doesn't have constant pressure, ΔH(enthalpy change) and Q(heat transferred) can be stated to be equal to one another.

A thermodynamic system's enthalpy, which is one of its properties, is calculated by adding the system's internal energy to the product of its pressure and volume. It is a state function that is frequently employed in measurements of chemical, biological, and physical systems at constant pressure, which the sizable surrounding environment conveniently provides.

Q (Heat) is referred to as energy in motion. On the other hand, enthalpy (ΔH) represents the system's condition and total heat content. The change in internal energy is equal to the heat transmitted to, less the work done by, the system, according to the law of energy conservation. The enthalpy change(ΔH) is precisely equal to the heat transferred(Q) to the system if the sole work performed is a change in volume at constant pressure.

To know more about enthalpy refer to:  brainly.com/question/13996238

#SPJ4

You might be interested in
Think about the animals in an arctic ecosystem. How would those animals adapt over time if global temperatures rise over the nex
brilliants [131]

Given the fact that we are seeing a rise in the temperature of the globe, the artic animals in that ecosystem must adapt by a reduction in the rate of metabolism.

<h3>What is global warming?</h3>

Several evidences continue to emerge that the temperature of the earth have continued to increase and this is largely due to the fact that since the turn of the twentieth century and the rise of industrialization, there have been a rise in the emission of the carbon dioxide and other green house gases into the environment. As a result of this, the temperature of the earth has continued to rise steadily leading to the melting of the ice cover and the destruction of ecosystems that are found around the artic regions of the earth.

Now, we know that an organism is able to adapt to the changes that occur in its habitat by being able to alter some of its structure and function.

Given that the organisms that live in the artic are adapted to cold regions and low temperatures, the metabolic rate of the organisms is high in order to produce heat.

As a result of the rise in global temperatures, the organisms would have to reduce their rate of metabolism.

Learn more about global warming:brainly.com/question/12908180

#SPJ1

5 0
1 year ago
Explain atoms contain positively charge protons and negatively charge electrons. why does an ordinary atom have no charge?
tatiyna
An ordinary atom is balanced for instance, lithium has 3 protons and 3 electrons the positively charged proton cancels the negatively charged electron.


THINK math   plus 3 and negative 3 = 0 neutral 
3 0
3 years ago
Use the table to calculate ΔH°rnx for the following reaction
alexdok [17]

Answer:

The answer to your question is ΔH° rxn = -1343.9 kJ/mol

Explanation:

                       P₄O₆ (s)  +  2 O₂ (g)   ⇒  P₄O₁₀

ΔH°rxn = ?

Formula

ΔH°rxn = ∑H° products - ∑H° reactants

H° P₄O₆ = -1640.1 kJ/mol

H° O₂ = 0 kJ/mol

H° P₄O₁₀ = -2984 kJ/mol

-Substitution

ΔH° rxn = (-2984) - (-1640.1) - (0)

-Simplification

ΔH° rxn = -2984 + 1640.1

ΔH° rxn = -1343.9 kJ/mol

7 0
2 years ago
Convert 4.50 moles of fe to atoms of fe
Rina8888 [55]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We do as follows:

4.50 mol Fe ( 6.022x10^23 atoms / 1 mol Fe ) = 2.71x10^24 atoms Fe present </span>
7 0
2 years ago
* Need ASAP * Explain the relationship between percent composition, Empirical formula, and molecular formula.
sweet-ann [11.9K]

By dividing the percentage composition with the molar mass of that element we will get the empirical formula. Then using that empirical formula and formula mass we can find the molecular formula.

<u>Explanation:</u>

The chemical properties of any substance are defined obviously by the different types and relative amounts of atoms constituting its primary entities (in case of covalent compounds the primary entities are molecules and ions in the event of ionic compounds).

A percent composition of any compound gives the mass percent of each element present in the compound; in addition to that frequently it is determined experimentally and utilized to derive an empirical formula of any compound. An empirical formula mass of any covalent compound could be comparable with the molar or molecular mass of a compound to acquire a molecular formula.

5 0
3 years ago
Other questions:
  • Can anyone explain to me what does the little “s” means at the end :/ . Btw it’s an easy question
    7·1 answer
  • What quantity measures the amount of space an object occupies?
    8·2 answers
  • Write hypothesis about a valcano
    9·1 answer
  • How many moles of mercury atoms are in 5.418 x 1023 atoms of mercury? moles
    9·2 answers
  • Round 0.0011675cg to four significant figures
    12·1 answer
  • A hot lump of 39.9 g of iron at an initial temperature of 78.1 °C is placed in 50.0 mL H 2 O initially at 25.0 °C and allowed to
    7·1 answer
  • Which of the following solutions will have the highest boiling point?
    8·1 answer
  • An aqueous salt solution is 15.0% mass sodium chloride. How many grams of salt are in 250.0 grams of this solution? Use correct
    13·1 answer
  • Help me please i put nine points!
    9·1 answer
  • A kid walking around with a balloon on a summer day when the temperature outside is 300 k contains the volume of 4 l goes into a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!