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REY [17]
3 years ago
12

The internal combustion engine takes advantage of the ability of the combustion reaction of gasoline to do _______ and move a pi

ston up and down.
A. free energy
B. enthalpy
C. work
D. entropy
PLS HELP ASAP THANK YOU!!!
Chemistry
1 answer:
grandymaker [24]3 years ago
8 0
The answer is C, work. The reaction of the air/gas mixture being ignited produces energy which moves the piston up and down which turns the crankshaft.
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7 0
3 years ago
What measurement is the radius of the atom?
Oduvanchick [21]

Answer:

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5 0
3 years ago
A) How much energy would be required to melt 500 grams of ice at 0°C to water at 0°C?
baherus [9]

Heat required = Q = 40 kcal

<h3>Further explanation</h3>

Given

mass of 500 g ice

Required

Heat required

Solution

The heat to change the phase can be formulated :  

  • Q = m.Lf (melting/freezing)  
  • Q = m.Lv (vaporization/condensation)  

Lf=latent heat of fusion  

Lv=latent heat of vaporization  

Lf for water = 334 kj/kg=6.01 kJ/mol = 80 cal/g

Phase change(ice to water)

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Q = 40 kcal

4 0
3 years ago
What does potassium hydroxide and sulphuric acid make?
bekas [8.4K]

Base + Acid = Water + Salt

It makes salt water... water and potassium sulfate

Balanced rxn is:

2KOH + H2SO4 = 2H2O + KSO4



4 0
3 years ago
Read 2 more answers
How many atoms of Kr (Krypton) are in a balloon that contains 2.00 mol of Kr? (4)
Svetllana [295]

Answer:

atoms= 1.204x10^{24}atoms

Explanation:

Hello!

In this case, according to the Avogadro's number, it is possible to compute the atoms of Kr in 2.00 moles as shown below:

atoms=2.00mol*\frac{6.022x10^{23}atoms}{1mol} \\\\atoms= 1.204x10^{24}atoms

Best regards!

4 0
2 years ago
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