Please help The pressure of a 70.0L sample of gas is 600 mm Hg at 20.0°C. If the temperature drops to 15.0"C and the volume expands to 90.0 L, what will the
pressure of the gas be?

"457.2 mm.Hg" is the right solution.

Explanation:

Given:

Pressure,

Volume,

Temperature,

or,

or,

As we know,

⇒  

By putting all the given values in the above expression, we get

⇒  

⇒  

By applying cross-multiplication, we get

⇒  

⇒      

⇒      

or,

⇒      

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the answer is minerals.