How many moles of n-butane is in part b of the tank

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Reference no: EM131005644

Problem 1: A tank is divided by a rigid, thermally conducting partition into two equal parts, A and B, each 10 m3 in volume.

Part A contains saturated liquid n-butane at 20 °C, 2.07 bar;

part B contains saturated n-butane vapor, also at 20 °C, 2.07 bar. Each part is equipped with a safety alarm that will go off if pressure exceeds 40 bar.

a) How many moles of n-butane is in part A of the tank?

b) How many moles of n-butane is in part B of the tank?

c) The tank is heated slowly in such a way that the temperature in both parts rises at the same rate. As soon as the alarm goes off, the heating stops. Which alarm goes off, that of part A or part B?

d) What is the temperature when the alarm sounds?

Additional data: The volume expansivity and the isothermal compressibility of liquid n-butane are given below and may be assumed to be constant:

β = 2.54 × 10-3 K-1, κ = 3.4 × 10-4 bar-1.

Reference no: EM131005644

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