Chemistry-
General
Easy
Question
H for CaCO3(s) 
CaO(s) + CO2(g) is 176 kJ mol–1 at 1240 K. The E for the change is equal to
- 160 kJ
- 165.6 kJ
- 186.3 kJ
- 180.0 kJ
The correct answer is: 165.6 kJ
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Chemistry-
The heat evolved in combustion if 112 litres of water gas (mixture of equal volume of H2(g) and CO(g) is
H2(g) + 1/2 O2(g) = H2O(g) H = –241.8 kJ
CO(g) + 1/2 O2(g) = CO2(g) H = –283 kJ
The heat evolved in combustion if 112 litres of water gas (mixture of equal volume of H2(g) and CO(g) is
H2(g) + 1/2 O2(g) = H2O(g) H = –241.8 kJ
CO(g) + 1/2 O2(g) = CO2(g) H = –283 kJ
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(1) For the given heat of reaction,
i) C(s) + O2(g) = CO2(g) + 97 kcal
ii) CO2(g) + C(s) = 2CO(g) – 39 kcal the heat of combustion of CO(g) is:
(1) For the given heat of reaction,
i) C(s) + O2(g) = CO2(g) + 97 kcal
ii) CO2(g) + C(s) = 2CO(g) – 39 kcal the heat of combustion of CO(g) is:
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a)
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a)
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