I got this wrong on a quiz and Im not sure why.A gas sample is heated from -20 degrees C to 57.0 degrees C and the volume increased from 2.0 L to 4.50 L. If the initial pressure is 0.146 atm what is the final pressure?My answer was .0498 and it was wrong.Please explain step by step.Thank You

Question
Asked Oct 25, 2019

I got this wrong on a quiz and Im not sure why.

A gas sample is heated from -20 degrees C to 57.0 degrees C and the volume increased from 2.0 L to 4.50 L. If the initial pressure is 0.146 atm what is the final pressure?

My answer was .0498 and it was wrong.

Please explain step by step.

Thank You

 

check_circleExpert Solution
Step 1

According to combi...

PV PV
т,
Т,
Given
0.146atm
V 4.5L
2
T, 57°C+273K-330K
T-20°C+273K=253K
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PV PV т, Т, Given 0.146atm V 4.5L 2 T, 57°C+273K-330K T-20°C+273K=253K

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