# At conditions of 1.5 atm of pressure and 15.0 °C temperature, a gas occupies a volume of 45.5 mL. What will be the volume of the same gas at 1.1 atm and 30.0 °C?

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At conditions of 1.5 atm of pressure and 15.0 °C temperature, a gas occupies a volume of 45.5 mL. What will be the volume of the same gas at 1.1 atm and 30.0 °C?

At conditions of 1.5 atm of pressure and 15.0 °C temperature, a gas occupies a volume of 45.5 mL. What will be the volume of the same gas at 1.1 atm and 30.0 °C?

##### 2 Answers

#### Explanation:

...that

And so we solve for

That volume has increased is consistent with the pressure drop, and temperature increase...the question should have specified that the gas was confined to a piston....with variable volume...

#### Explanation:

You'll be using the Combined Gas Law since your question involves all three variables:

If (

#P_1 = "1.5 atm"# #P_2 = "1.1 atm"# #V_1 = "45.5 mL"# #V_2 = ?# #T_1 = 15^@"C"# #T_2 = 30^@"C"#

Before plugging in all values to solve for the volume, temperature MUST ALWAYS be in Kelvins, at least for gases. To convert Celsius to Kelvin, all you do is add

Now we're ready to plug and chug!

Work for calculation:

or

So that means the volume of the gas would be *about*