ib 3.2 gases

Question 3 If an ideal gas is compressed to extremely high pressures at a constant temperature it would

• A reach a point where solid liquid and gas were in equilibrium.
• B turn to a liquid
• C remain a gas
• D turn to a solid

Question 4 The Kelvin scale is based upon

• A the length of a column of mercury.
• B the pressure of a fixed mass of gas at constant volume.
• C the electrical resistance of a thermistor.
• D the volume of a fixed mass of gas at constant pressure.

Question 5 A gas is heated from 30°C to 330°The ratio final temp / original temp in Kelvin is

• A 10
• B 11
• C 2
• D 0.5

Question 6 A gas is held in a 100 cm3 container at a pressure of 100 kPa. If 1/3 of the gas is released while the temperature is kept constant the new pressure is

• A 67 kPa
• B 300 kPa
• C 200 kPa
• D 33 kPa

Question 7

• A An isobaric expansion
• B An isobaric contraction
• C An Isochoric contraction.
• D An isothermal expansion.

Question 8 A gas with volume 2cm³ and pressure 100 kPa expands at constant temperature so that is volume becomes 3 cm³. The new pressure of the gas is

• A 67 kPa
• B 150 kPa
• C 16 kPa
• D 33 kPa

Question 9

• A 90 kPa
• B 200 kPa
• C 120 kPa
• D 150 kPa

Question 10

• A 90 kPa
• B 140 kPa
• C 210 kPa
• D 70 kPa

Question 11

• A
• B
• C
• D

Question 12

• A 920 K
• B 1400 K
• C 270 K
• D 530 K