Thermochemistry Basic SES

This is ____________ reaction

• exothermic

• endothermic

• hypothermic

• hyperthermic

This is ____________ reaction

• exothermic

• endothermic

• hypothermic

• hyperthermic

The heat change when 1 mole of a compound is formed from its elements in their stable states under standard conditions.

What type of this enthalpy?

• Enthalpy of combustion

• Enthalpy of formation

• Enthalpy of neutralization

• Enthalpy of ionisation

The heat released when one mole of a substance is completely combusted in oxygen gas under standard conditions.

What type of this enthalpy?

• Enthalpy of combustion

• Enthalpy of formation

• Enthalpy of neutralization

• Enthalpy of ionisation

The heat released when 1 mole of water, is formed from the neutralisation of acid and base under standard conditions.

What type of this enthalpy?

• Enthalpy of combustion

• Enthalpy of formation

• Enthalpy of neutralization

• Enthalpy of ionisation

______________is the amount of heat required to raise the temperature of one gram of the substance by one degree Celsius (Jg −1°C−1).

• Specific heat capacity

• Heat Capacity

• Enthalpy

• Entrophy

________________is the amount of heat required to raise the temperature of a given quantity of the substance by one degree Celsius (J°C−1).

• Specific heat capacity

• Heat Capacity

• Enthalpy

• Entrophy

▪Heat released or absorbed is given by:

  q = mcΔT @ q = CΔT

 

  where  m = ​ (a)  

                 c = ​ (b)  

                       C = ​ (c)  

                     ΔT =​ (d)  

• mass (in g)
• specific heat capacity of a substance (Jg-1°C-1)
• heat capacity (J°C-1)
• temperature change (°C)

Standard Condition means....

• Temperature of 25^oC/ 298K

• Pressure of 1 atm

• Concentration of 1M for aqueous solution

• Pressure of 0(Zero) atm

A device use to calculate enthalpy known as.................

• Calorimeter

• Ammeter

• Voltmeter

• Speedometer