- #1

zack7

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## Homework Statement

1.A gas increases in temperature from 40 C to 120 C while increasing in volume from 1 m3 to 1:3 m3. Find the

nal pressure, if the initial pressure is atmospheric pressure.

2.Estimate the length of time it takes for a 0.1 m x 0.1 m x 0.1 m block of steel to cool from 20.0 C to 0 C,

assuming that it loses thermal energy by conduction through all six faces.

## Homework Equations

Q1

ΔV = b V

_{0}Δ T

but this equation does not give me the pressure and I have no idea whether any other equation relates the info I got with pressure

Q2

H =

dQ

dt

= kA(T

_{H}- T

_{C}/L)

Is it I don't have enough info or is the equation I am using wrong?