Question

10.0 mol of argon (monoatomic) gas is introduced to an empty 50-cm³ container at 20 ⁰C. The gas then undergoes an isobaric heating to a temperature of 300 ⁰C.

a) What is the pressure at which this process happens?

b) What is the final volume of gas?

c) Show this process on a PV diagram. Make sure you include units and properly label axes.

d) What is the amount of work done during this process? Is this work done ON the gas or BY the gas?

e) How much heat is involved in this process? Is the heat going in or out of the system?

Answer 1

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n=10mol. V = 50 x106m² 7 = 5/3 (Monoatomic) TF 20 +273=293K Is = 300°C = 573 k. - a) Pov = URT; C- 10x 8.314 x 293 SOXTo6 = 4.872 X 10 Pa And b) at constant pressure V&T (charle's kn) Ti 534 SOXIG 293 . Vf 573 ave 7 V = final = 97.7816x106m 3 Volume 4.872 X 108 (97.7816-50)x106 Work (w) = Pay = =) W = 2.321918x104J JA d) pv-diagram PA コート Vi v e) Heat, (18) = NGATE NOI) AT = 10x 8-34* (?) (573-293) DAQ 5.8198X10 off And (-1)