GASES

Question 1

STATE BOYLES LAW ?

Answer 1

PROVIDED THAT THE TEMPERATURE IS KEPT CONSTANT, THE VOLUME OF A GASES IS INVERSELY PROPORTIONAL TO PRESSURE.

P1V1=P2V2

Question 2

STATE CHARLES LAW?

Answer 2

AT CONSTANT PRESSURE, VOLUME OF A GAS IS DIRECTLY PROPORTION TO THE TEMPERATURE.
V1/T1=V2/T2

Question 3

STATE GAY LUSSAC LAW.

Answer 3

AT CONSTANT VOLUME, THE PRESSURE OF A GAS IS DIRECTLY PROPORTIONAL TO THE TEMPERATURE.

P1/T1=P2/T2

Question 4

STATE AVOGADRO LAW.

Answer 4

EQUAL VOLUMES OF GASES AT TGE TEMPERATURE HAS EQUAL NUMBERS OF PARTICLES (MOLES)

Question 5

STATE IDEAL GAS LAW.

Answer 5

Pv=nRT

Question 6

STATE DELTON LAW OF PARTIAL PRESSURE?

Answer 6

PARTIAL PRESSURE REFERS TO THE PRESSURE EXTERTED BY AN INDIVIDUAL GAS IN A MIXTURE OF GASES.

Question 7

HOW DO U CALCULATE PARTIAL PRESSURE?

Answer 7

P.p=mole fraction ×p total

Question 8

HOW DO YOU CALCULATE MOLE FRACTION?

Answer 8

Xa=n(a) ÷ TOTAL MOLES.

Question 9

HOW DO YOU CALCULATE COLLECTING GAS OVER WATER PROBLEMS?

Answer 9

SINCE THE GAS IS BUBBLED THROUGH WATER,THE TOTAL PRESSURE IS EQUAL TO VAPOR PRESSURE AT A SPECIFIC TEMPERATURE AND THE PRESSURE OF THE GAS.

THERE FORE,

TOTAL PRESSURE =VAPOR PRESSURE + PRESSURE OF GAS COLLECTED

Question 10

HOW DO YOU PERFORM CONVERSION OF PRESSURE?

Answer 10

1atm=760 torr=760 mmHg

Question 11

HAS CONSTANT R VALUES?

Answer 11

R=0.08206 atm. L mol^-1.K^-1

R=8.3144598 J/mol.k

Question 12

STATE FORMULA FOR MOLAR MASS OF A GAS.

Answer 12

MOLAR MASS=density RT/P

Question 13

STATE KINETIC MOLECULAR THEORY.

Answer 13

1. GASES ARE MADE UP OF PARTICLES CALLED MOLECULES.
2. THESE MOLECULES ARE IN CONSTANT MOTION.
3. MOLECULES COLLIDE WILL EACH OTHER AND THE WALLS OF THE CONTAINER.
4. MOLECULES DO NOT ATTRACT OR REPELL EACH OTHER.
5. AVERAGE KINETIC ENERGY OF A GAS IS DIRECTLY PROPORTION TO THE TEMPERATURE.

Question 14

WHAT IS EFFUSION AND DIFFUSION?

Answer 14

DIFFUSION IS THE MOVEMENT OF MOLECULES FROM A PLACE OF HIGH CONCENTRATION TO A PLACE OF LOW CONCENTRATION.

EFFUSION IS THE MOVEMENT OF HAS MOLECULES THROUGH A TINY OPENING INTO A VACCUM

Question 15

DEFINE RATE OF EFFUSION.

Answer 15

RATE OF EFFUSION IS THE SPEED AT WHICH THE GASES MOLECULES PASS THROUGH A TINY HOLE IN A VACCUM.

Question 16

STATES GRAHAMS LAW OF EFFUSION.

Answer 16

THE RATE OF EFFUSION IS INVERSELY PROPORTION TO THE SQUARES ROOT OF ITS MOLAR MASS.

R 1/=SQUARE ROOT OF MM2 (t1)
R2 SQUARE ROOT OF MM1 (t2)time