Would Someone check my work please?(adsbygoogle = window.adsbygoogle || []).push({});

Here is the question.

The pressure on 500g of copper is increased reversibly and isothermally from 0 to 5000atm.

Where

density = 8.96X10^3kg/m^3

Volume Expansivity = 49.5X10^-6K^-1

isothermal compressibility = 6.18X10^-12Pa^-1

specific heat = 385 J/Kg*K

temp = 298K

Now the first part of the question ask how much heat is transferred during the compression? (I worked this out but got a different answer than the book )anyway here it is.

Q = -T*V*(Volume Expansivity)*(P_f-P_i)

Q = -(298K)*(5.58X10^-5m^3)*(49.5X10^-6K^-1)*(5.056X10^8Pa)

Where i found Volume From Mass/density

and changed Pressure from atm to Pascals

after pluging in all these numbers my answer is -416 N*m or -416J

the answer the book gives is -139.9J

Can anyone see the problem here?

sorry if there is any confusion with symbols this is my first post and do not know how to use the code yet.

Thanks

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# How much heat is transferred during the compression?

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