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Consider O_2(g) and CH_4(g) both at the same temperature and pressure Which gas

ID: 966450 • Letter: C

Question

Consider O_2(g) and CH_4(g) both at the same temperature and pressure Which gas has the greater squareroot mean square speed? O_2(g) CH_4(g) same for both cannot determine Which gas has the greater average kinetic energy O_2(g) CH_4(g) same for both cannot determine Which gas would effuse faster? O_2(g) CH_4(g) same for both cannot determine Which gas has the greatest volume O_2(g) CH_4(g) same for both cannot determine Which gas has the greatest density? O_2(g) CH_4(g) same for both cannot determine If the pressure of 6 moles of an ideal gas is doubles at constant temperature, the volume will be halved doubled constant impossible to tell The bond energy of an F-F bond is 100 Kj/mole, the reaction G(g) +F(g) rightarrow F_2(g) would have delta H_rxn equal to 100 KJ 50KJ -50KJ -100KJ A graph of V vs. T(K), at constant P and n, for an ideal gas has a y-interrupt of -273. 0 273 If equal masses of silver (C_s=0.235 J/g degree) at 100 degree C and water (C_3 =4.18 J/g degree C) at 20 degree C are combined ina calorimeter, the final temperature will be slightly > 20 degree C slightly

Explanation / Answer

1) Heavier gas has lower Vrms,, So the Methane will have higher Vrms

2) Average kinetic energy for all ideal gases are same at same Temperature

3) A lighter gas always diffuse or effuse faster under same conditions

so CH4 will diffuse faster.

4) BOth have same voulme. Under same conditions equal moles of gases occupy same volume

5) D = PM/RT, the gas with higher molar mass has higher density so oxygen will have higher density

6) The volume will be doubled , as T and n are constant

7) 100Kj/Mol

please post remaining questions separately

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