Which equation obeys the law of conservation of mass?
2 answers:
Answer:-
Explanations:- A balanced equation obeys the law of conservation of mass.
First equation is not balanced as it has two Fe on left side and four Fe on right side.
Second equation is not balanced as it has two O on left side and six O on right side.
Third equation is not balanced as it has one Fe on left side and two fe on right side.
Fourth equation is balanced as it has four Fe and six O on both sides. So, it obeys the law of conservation of mass.
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Answer: The new pressure of the gas in Pa is 388462
Explanation:
Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.
The combined gas equation is,
where,
= initial pressure of gas at STP =
= final pressure of gas = ?
= initial volume of gas = 700.0 ml
= final volume of gas = 200.0 ml
= initial temperature of gas = 273 K
= final temperature of gas =
Now put all the given values in the above equation, we get:
The new pressure of the gas in Pa is 388462