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AysviL [449]
4 years ago
6

One year is the amount of time it takes Earth to ____________. A. complete one rotation B. complete one revolution C. complete 5

2 rotations D. complete 365 revolutions
Chemistry
2 answers:
uysha [10]4 years ago
8 0

One year is the amount of time it takes earth to <u>complete 365 revolution </u>

Hope this helped:)(;

(If you do k12 this is right)

Cuz i'm in 6th grade k12

jeka57 [31]4 years ago
7 0
Should be B, because one rotation is a day one revolution is a day(also to check I looked up the difference).
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What volume of CH4(g), measured at 25oC and 745 Torr, must be burned in excess oxygen to release 1.00 x 106 kJ of heat to the su
anastassius [24]

Answer:

V=27992L=28.00m^3

Explanation:

Hello,

In this case, the combustion of methane is shown below:

CH_4+2O_2\rightarrow CO_2+2H_2O

And has a heat of combustion of −890.8 kJ/mol, for which the burnt moles are:

n_{CH_4}=\frac{-1.00x10^6kJ}{-890.8kJ/mol}= 1122.6molCH_4

Whereas is consider the total released heat to the surroundings (negative as it is exiting heat) and the aforementioned heat of combustion. Then, by using the ideal gas equation, we are able to compute the volume at 25 °C (298K) and 745 torr (0.98 atm) that must be measured:

PV=nRT\\\\V=\frac{nRT}{P}=\frac{1122.6mol*0.082\frac{atm*L}{mol*K}*298K}{0.98atm}\\\\V=27992L=28.00m^3

Best regards.

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4 years ago
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