Gases

Question 1

1 atm all other values

Answer 1

76 cm Hg
760 mm Hg
760 torr
101325 Ns
101325 Pa
101.325 kPa
1 Bar
14.7 Psi

Question 2

Ideal gas laws

Answer 2

Negligible volume
Equally sized particles, no IMF
Move randomly
Perfectly elastic collisions (no energy loss)

Question 3

Boyle’s Law

Answer 3

PV
V proportional to 1/P

Question 4

Charles’ Law

Answer 4

V proportional to T
V = kt

Question 5

Zero Kelvin is the temp at which

Answer 5

All motions of ideal gases are ceased

Question 6

Ideal gas equation in density terms

Answer 6

PV = dRT so
d = [PM/RT]

Question 7

Value of R at atm dm^3 mol-1 K-1

Answer 7

0.0821

Question 8

Value of R at mmHg dm^3 mol-1 K-1

Answer 8

62.4

Question 9

Value of R in torr cm-3 mol-1 K-1

Answer 9

62400

Question 10

Value of R in Nm mol-1 K-1

Answer 10

8.314

Question 11

Value of R in J mol-1 K-1

Answer 11

8.314

Question 12

Value of R in cal mol-1 K-1

Answer 12

1.97

Question 13

SI unit of gas constant

Answer 13

Nm mol-1 K-1

Question 14

z =

Answer 14

PV / nRT
z = 1 ideal
z= 1.2 non ideal
z = 0.8 non ideal

Question 15

When are gases non ideal

Answer 15

High pressure and low temp
HP LT = non ideal (HP Legacy is Trash)

Question 16

Vander waals equation for real gases

Answer 16

(P + an²/v²) (V-nb) = nRT