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A 20.0 L gas cyclinder has been filled with 6.40 moles of gas. You measure the...

A 20.0 L gas cyclinder has been filled with 6.40 moles of gas. You measure the pressure to be 4.10 atm. what is the temperature inside the tank? express in three significant figures

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Answer #1

Ideal gas equation is

PV = nRT

or

4.10 atm * 20.0 L = 6.40 mole * 0.0821 L-atm / mole-K * T

or

T = 156 K = (156 - 273) = - 117 oC

temperature inside the tank = - 117 oC.

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