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mahr mass of the gas? [S pts] D) . = constant E) =constant 32) Of the following

ID: 103342 • Letter: M

Question

mahr mass of the gas? [S pts] D) . = constant E) =constant 32) Of the following only is impossible for an ideal gas 32) V2 T2 B) CO Vi Ti V2 T2 T2 33) Of the fellowing gases_ A) HBr B) NH3 C) HCI D) CH4E) Ar will have the greatest rate of effusion at a given temperature.33) 34) which one of the following gases would deviate the least from ideal gas behavior? 35) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is A) 15 B)73 1.5 D)33 E) 0.67 36) Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a gas at room temperature? 36) 37) The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases becaase 37) A) the gas molecules collide more energetically with the wall B) the gas molecules collide more frequently with the wall C) the average kinetic energy of the gas molecules decreases D) the gas molecules collide less frequently with the wall E) both the gas molecules collide more frequently with the wall and the gas molecules collide more energetically with the wall 38) If50.75 g of a gas occupies 10.0 L at STT, 129.3 g of the gas will occupy Lasm. 38) A) 5.08 B) 25.5 C)50.8 D)3.92 E) 12.9 A ballow is filled with helium gas. For the questionts) tht flluw, sedect the letter of the ballon diagram that corresponds to the give change in conditions

Explanation / Answer

33) The answer is D

CH4 has greatest rate of diffustion because it has lower molecular mass than others.

Rate of diffusion is inversely proportional to the molecular mass.

34) The answer is A

CH3Cl is a more molecular mass compound.

35) V1= 10L             V2= 15L

      P1= 1 atm          P2=?

According to boyles law         P1V1=P2V2

P2= 1x10/15 = 0.67 atm

The answer is E.

37) The answer is C

KBr is Ioinc compond . so it is exist in solid state.

38) The answer is E.

KE is directlyl proportional to the Temperature. so T is incresed KE is also increases. The movement of the gases of the molecules are increses. Hence the collisions are also increses.

39) Accoedings to Avagadros law

V1/n1 = V2/n2

V2 = V1n2/n1 = 10x129.3/50.75 = 25.47 = 25.5 L

V2= 25.5L

The answer is B.