Question 18 of 25 40 40 points a test balloon

Question 18 of 25
4.0/ 4.0 Points
A test balloon contains 500. mL of 298.15 °K gas. If I heat the gas in the balloon to 323.15 °K with a laser,
what will be the new volume of the gas in L?

A.
0.193 L

B.
1.00 L

C.
0.461 L

D.
0.542 L
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The volume is directly proportional to the absolute temperature (K) for a fixed amount of an ideal gas at
constant pressure.
Question 19 of 25
4.0/ 4.0 Points
The air that we breathe is actually a mixture of several gases. Of those involved, which is the major
component of the mixture?

individual component gases.
Part 4 of 4 - Part 05 20.0/ 24.0 Points
Question 20 of 25
4.0/ 4.0 Points
N
2
is non-reactive, however, if you can get it to react with H
2
, it does so in a 1:3 mole ratio (N
2
:H
2
) and
releases 92.0 kJ of thermal energy. That means which if these statements are true?
Question 21 of 25
4.0/ 4.0 Points

Magnesium oxidizes via the reaction:
2 Mg + O
2
→ 2 MgO
The reaction has a △ H
rxn
= -1203 kJ. How much heat (in kJ) is released when you completely react 3.000
moles of O
2
?