Question

Homework Assignment #5 States of Matter Gases, Liquids and Solids (Due date: October 29, 2019) (1) Consider the following sample of gases: = He = N2 (i) (ii) (iii) If the three samples are all at the same temperature, rank them with respect to (a) total pressure; (b) partial pressure of helium; (c) density; (d) average kinetic energy of particles. (II) The temperature of a gas is raised from 10 °C to 20 °C. Will the volume double if mass and pressure do not change? Why or why not? (Show your calculations)

Answer 1

solution, o orden of total prenure in (0) > ) > >(11) Reason: P = 1 more? so p hithers for highen mans Army and highen no of ators (N). b) orden ď partial pressure of He is: A z iv>4412 (1) >(1>01) Reason! Partial presure a mole fraction obviously the mole fraction of He is highest in (1) and lowest in (14) c) orden of demity in (11) 7 (1) > 01) Reason: Demity a man for fixed volume d) Avenge kinetic energy of particles depend only on Temperature, The samples are at same temperature so annage kinetic energy in - same for an

11) we know vat tined Pem) pow T, 2 10°C = 2734 10 )2 283k S Tz = 20°c - (273+20), 293k so, V # 2 so the volume will not double because we need to consider temperature in k not in oc. 283