Search & Filtering
( ) ( ) ( ) ( ) 2 2 2 CO g H O g CO g H g + → + H ( C)
o o 25
= -42.0 kJmol-1
Cp (CO) = 26.8 + 6 x 10-3T JK-1mol-1
Cp (H2O) = 30.1 + 10 x 10-3T JK-1mol-1
Cp (H2) = 28.5 + 2 x 10-3T JK-1mol-1
Cp (CO2) = 26.4 + 42 x 10-3T JK-1mol-1
where T is the thermodynamic temperature, calculate the change in enthalpy for the
reaction at 1000 K
When 5.73 g of sodium chloride (NaCl) dissolves in 100 cm3 of water, the temperature of the water fell from 22.4 oC to 19.8 oC. Calculate the enthalpy change of the reaction.
zeolite method and 50 mL of the treated water consumed 2.3 mL of EDTA solution. 50 mL of
SHW required 21 mL of EDTA. Calculate how much of hardness is removed by the zeolite
process? (SHW = 1 g/L)
How did you account for the abnormally high mobility of OH- ions in water?
The equilibrium constant for a particular reaction is 10^ -12 at 327 degree Celsius and 10^ -7 at 427 degree Celsius. Calculate the enthalpy of reaction.
For a particular chemical reaction, the free energy changes at 25 degree Celsius and 35 degree Celsius are -33.089kJ and -28.018kJ respectively. Calculate the heat of reaction.
water sample required 30 mL of N/50 H2SO4 for phenolphthalein end point and another 20
mL for complete neutralisation. Determine the type and extent of alkalinity present.
what is ligands?
25cm³ of 0.7 M HCl acid solution was added to 25cm³ of 0.7 M KOH solution in a calorimeter. The temperature of the mixture rose from 19.7⁰c to 21.8⁰c,given that the heat of the calorimeter and its content is 488j/K. Calculate the standard enthalpy of neutralization, given that the specific heat capacity of solution is 4.2 J per grams per degree Celsius
#339914 on Dec 2023