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
Tresset [83]
3 years ago
10

Given that a commercial airliner has a range a range of 9,500 miles using 265 tons of JP-4 fuel. Estimate the range of the aircr

aft burning either gaseous or liquid hydrogen at_____________.
Chemistry
1 answer:
Blizzard [7]3 years ago
6 0

Here is the full question.

Given that a commercial airliner has a range of 9,500 miles using 265 tonnes of JP-4 fuel. Estimate the range of the aircraft burning either gaseous or liquid hydrogen at the same mass of hydrogen as JP4.

The dry mass of the aircraft is 800 tonnes. The fuel properties are as follows:

Fuel                             Density (kg/m³)              Heating value (kJ/kg)

JP4                                 800.0                            45000

H₂ (gaseous, S.T.P)       0.0824                          120900

H₂ (liquid, 1 atm)             70.8                              120900

Answer:

25,514 mi

Explanation:

Let first calculate the value of initial mass of the aircraft m_1 when burning JP4 fuel by using the expression:

m_1 =m_2 + m_{JP4}

where;

m_2 = 800t

m_{JP4} = 265t

m_1 = 800t+265t

m_1=1065 t

We need to employ the use of the range of the airliner which can be expressed by the formula;

s = \eta__0}(\frac{L}{\delta g})In(\frac{m_1}{m_2})(\frac{Q_R}{g})

where;

\eta__0} = overall efficiency

L = lift

\delta g = drag force

m_1 = initial mass of the vehicle

m_2 = is the final mass of the airliner after the burning of fuel

Q_R = is the heat of the reaction of the fuel burning.

g = gravitational acceleration

Rearranging the above equation; we have:

\eta__0}(\frac{L}{\delta g})   = \frac{ s}{In(\frac{m_1}{m_2})({Q_R})}

\eta__0}(\frac{L}{\delta g})   = \frac{9500 mi}{In(\frac{1065t}{800t})({45000 kJ/kg})}

\eta__0}(\frac{L}{\delta g})   = \frac{0.2111}{In(1.33)}

\eta__0}(\frac{L}{\delta g})   = 0.74 mi.kg/kJ

To estimate the range of the aircraft burning either gaseous or liquid hydrogen at the same mass of hydrogen as JP4; we have:

s = \eta__0}(\frac{L}{\delta g})In(\frac{m_1}{m_2})(\frac{Q_R}{g})

s= (0.74mi.kg/kJ)(120900kJ/kg)In(\frac{1065t}{800t})

s= (89466mi)In(\frac{1065t}{800t})

s = (89466mi)In(1.33)

s = 25,513.82 mi

s ≅ 25,514 mi

Thus, the range of the aircraft when burning either gaseous or liquid hydrogen at the same mass of hydrogen as JP4 is 25,514 mi

You might be interested in
1. What would happen to the position of equilibrium when the following changes are made to the reaction below? 2Hg3O (g) ↔ 6Hg (
Mademuasel [1]
What is your answer I can help you)
4 0
3 years ago
Read 2 more answers
Liquid does not act that a solid. how is it different from a solid and gas?
Wittaler [7]
Unlike solid matter, where particles are tightly packed and slightly vibrating, or gas, where particles go around everywhere and are extremely loose, a liquid has particles that are loosely packed but are still in slight contact with each other. Hope that's good enough
6 0
3 years ago
Scientists' belief that an atom is a solid sphere, is good enough to explain; PLZ I HAVE LESS TIME!!!!
Natasha2012 [34]

Answer:

Its quite vague, instead you could say an atom is the smallest building block which further consists of subatomic particles like protons, neutrons and electrons :)

Hope thi helps :) and I'd appreciate if you'd mark brainliest because ive been stuck on the same rank for quite a long time :(

7 0
3 years ago
Help me please!!!( ꈍᴗꈍ)​
Dahasolnce [82]

Answer:

<h3>Which of the following increases with the increase in the temperature in case of a liquid?</h3><h2><em>Va</em><em>pour</em><em> </em><em> </em><em>Pressure</em><em> </em></h2>

Explanation:

When a closed container contains liquid, higher the temperature, higher the evaporation the evaporation will be.

So Vapour Pressure should be the correct answer.

6 0
2 years ago
Read 2 more answers
You notice that when the parchment paper of an ancient document is exposed to a certain chemical, the parchment paper becomes a
const2013 [10]
You have done a chemical change
5 0
3 years ago
Other questions:
  • A substance has a volume of 20 mL and a density of 2.5 g/mL. What is its mass?
    9·2 answers
  • A sample of a gas originally at 29 °c and 1.25 atm pressure in a 3.0 l container is allowed to contract until the volume is 2.2
    8·1 answer
  • I have a block of gold and the density is 13.54g/ml If I cut the block in half what is the density of the smaller pieces of gold
    13·1 answer
  • ‏A second - order reaction has a rate constant of 0.06 M min - 1 . It takes min for the reactant concentration to decrease from
    6·1 answer
  • Question: Which is the last step in excavation of the skeletal remains?
    15·2 answers
  • The pressure of a gas is 750 torr when its volume is 400. ml. Calculate the
    9·1 answer
  • Do anyone know science??
    9·2 answers
  • A compound with the empirical formula CH2 was found to have a molar mass of approximately 112 g. Write the molecular formula of
    7·1 answer
  • A 1.50 g sample of a pure compound, containing only carbon and hydrogen, was
    10·1 answer
  • when two amino acid monomers are positioned so that the carboxyl group of one is adjacent to the amino group of the other, they
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!