Chapter 3: Stoichiometry and the Combustion of Fuels

Question 1

Bar

Answer 1

A unit of pressure. 1 bar = 100kPa

Question 2

Gas Constant

Answer 2

The constant, R, in the Universal Gas Equation PV=nRT. R = 8.31 JK^-1 mol^-1 where pressure is measured in kPa, volume in L and temperature in K.

Question 3

Ideal Gas

Answer 3

A gas which obeys the Universal Gas Equation at all temperatures and pressures.

Question 4

Kelvin Scale

Answer 4

The absolute temperature scale. Deg K = Deg C + 273.

Question 5

Pascal

Answer 5

Unit of pressure equal to 1 newton per square metre where pressure = force/area.

Question 6

Pressure

Answer 6

The force exerted per unit area of a surface.

Question 7

Standard Atmosphere

Answer 7

Standard reference conditions to compare testing of experimental activities. Gas pressure is 100kPa, 25 Deg C & Dissolved Species 1.0M.

Question 8

Standard Laboratory Conditions (SLC)

Answer 8

Conditions at which gas pressure is 100kPa, 25 Deg C. One mole of an ideal gas has a volume of 24.8 litres.

Question 9

Standard Temperature and Pressure (STP)

Answer 9

Conditions at which gas pressure is 100kPa, 0 Deg C. One mole of an ideal gas has a volume of 22.7 litres.

Question 10

Universal Gas Equation

Answer 10

PV=nRT which is the equation which describes the behaviour of an ideal gas.

Question 11

Standard Atmosphere

Answer 11

One standard atmosphere (1 atm) is the pressure required to support 760mm of mercury in a mercury barometer at 25 Deg C. One atmosphere pressure is approximately the pressure experienced at sea level.