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**Heat absorbance: PLS PLS HELP ASAP!!**

## Homework Statement

A quantity of a monatomic ideal gas undergoes a process in which its pressure is increased by a factor of n = 3 and its volume is increased by a factor of m = 6 as shown in Figure P12.12. What is the heat absorbed by the gas during this process? (Hint: See Problem 1. Answer in terms of P0V0.)

http://www.webassign.net/sercp/p12-12alt.gif

this is what i've done so far, but i keep getting it incorrect.

work (W), which equals -1/2 (n*Po-Po)(m*Vo-Vo) - Po(Vo-Vo)

delta U = (3/2) [(m*Po)(n*Vo) - PoVo]

delta U=(3/2)[(6Po)(3Vo)-PoVo]=(3/2)(17PoVo)

W=(-1/2)((3Po-Po)(6Vo-Vo)-Po(Vo-Vo))=(-1/2)((2Po)(5Vo)-(Po(Vo-Vo))=-5PoVo

U=Q+W

I solved for W and got 30.5xPoVo.

I'm clearly doing some incorrect algebra somewhere. Could i please get some help?

thanks

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