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Norma-Jean [14]
3 years ago
11

The _____ protects Earth from meteoroids and other objects that may fall from space.

Chemistry
1 answer:
nika2105 [10]3 years ago
7 0

Mesophere (I'm pretty sure that's right)

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Find the heat produced from an 8.00 L cylinder of propane gas under 5.00 atm at 25.0 oC, if one mole of propane can produce 2220
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Answer:  3597 kJ of heat

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 5.00 atm

V = Volume of gas = 8.00 L

n = number of moles = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =25.0^0C=(25.0+273)K=298K

n=\frac{PV}{RT}

n=\frac{5.00atm\times 8.00L}{0.0821 L atm/K mol\times 298K}=1.63moles

As it is given :

1 mole of propane produces = 2220 kJ of heat

Thus 1.63 moles of propane produces = \frac{2200}{1}\times 1.63=3597kJ

Thus 3597 kJ of heat is produced

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