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Decomposition of calcium carbonate occurs as:
CaCO3 = CaO + CO2 : ΔG0T = 17710 - 158T J. mol-1
What will be the decomposition temperature (in K) of CaCO3, if the activity of CaO is 0.5 and the pressure is 3 atmospheres?

Decomposition of calcium carbonate occurs as:
CaCO3 = CaO + CO2 : ΔG0T = 17710 - 158T J. mol-1
What will be the decomposition temperature (in K) of CaCO3, if the activity of CaO is 0.5 and the pressure is 3 atmospheres? Correct Answer 142.7

Related Questions

Which of the following statement(s) is/are correct?
1. If sodium carbonate and washing soda is mixed in water the hardness of water can be removed.
2. The reaction of the chemicals produce sodium sulphate, sodium carbonate and insoluble calcium carbonate.
3. Magnesium sulphate chloride and magnesium carbonate is also produced.
Select the correct answer
A rotary drum filter with 30% submergence is used to filter concentrated aqueous slurry of calcium carbonate containing 15lb of solids per cubic foot of water. The pressure–drop is 2011Hg. If the filter cake contains 50% mixture (wet basis), calculate the filter area required to filter 10 gal/min of slurry. The filter cycle time is 5 min. The specific cake resistance depends on the pressure–drop as: α (ft/lb) = α (Δp)0.26, where α = 2.90×1010 Viscosity of the filtrate = 6.72×10-4 lb/ft-s. Density of calcium carbonate = 168.8 lb/ft3. Neglect filter medium resistance.
1. A student fitted the required apparatus to collect carbondioxide in the gas jars. 2. The student took out some substance from the bottle labelled calcium carbonate and put it in the woulfe's bottle. 3. Then the student poured some from the bottle labelled dilute hydrochloric acid on the calcium carbonate contained in the woulfe's bottle. 4. considering the above mentioned facts maximum how many hypotheses are possible relating to the causes of non-collection of the gas in the gas jar?
On providing heat, the decomposition of calcium carbonate into calcium oxide and carbon di-oxide, is example of . . . . . . . .?
The office of five important functionaries of a college, namely, Director, Registrar, Dean, CAO and Librarian is in a row. The office of the Director is in between the offices of Dean and CAO. The office of the Librarian is at the extreme right end, while the office of Registrar is in between the offices of the Librarian and the CAO. Whose office is at the extreme left end?
When 10 g of calcium carbonate is decomposed completely, then 5.6 g of calcium oxide is formed along with the generation of carbon dioxide. Mass of the carbon dioxide formed is: 
Calcium hydroxide has a neutralizing value (calcium carbonate equivalent) of . . . . . . . .
The purpose of injection of calcium into liquid steel is to
P. replace Al2O3 inclusions by CaO inclusions
Q. modify Al2O3 inclusions into calcium aluminate inclusions
R. reduce sulfur content of steel
S. reduce nitrogen content of steel
Which of the following are characteristics/properties of permanent hardness in water? (A) Presence of bicarbonates of calcium and magnesium (B) Presence of sulphates of calcium and magnesium (C) Forms good lather when comes in contact with soap (D) Presence of chloride of calcium and magnesium (E) Can be removed by boiling the water Choose the correct answer from the options given below :
If air consists of 77% by weight of nitrogen and 23% by weight of oxygen calculate: (i) the mean molecular weight of air, (ii) the mole fraction of oxygen, (iii) the concentration of oxygen in mole/m3 and kg/m3 if the total pressure is 1.5 atmospheres and the temperature is 25 °C.