Chemistry-
General
Easy
Question
Which one of the reaction is an exothermicreaction-
- CaCO3(s)→CaO(s)+CO2(g)
- N2(g)+O2(g)→2NO(g)
- 2HgO(s)→2Hg(s)+O2(g)
- None of these
The correct answer is: None of these
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a simple meter-bridge circuit, the both gaps are bridge by coils P and Q having the smaller resistance. A balance is obtained when the jockey key makes contact at a point of the bridge wire 40 cm from the P end. On shunting the coil Q with a resistance of 50Ω the balance point is moved through 10 cm . What are the resistance of P and Q
a simple meter-bridge circuit, the both gaps are bridge by coils P and Q having the smaller resistance. A balance is obtained when the jockey key makes contact at a point of the bridge wire 40 cm from the P end. On shunting the coil Q with a resistance of 50Ω the balance point is moved through 10 cm . What are the resistance of P and Q
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For the reaction Ag2O(s)→2Ag(s)+½O2(g) the value ofΔH=30.56KJmol–1and ΔS=66 JK–1mol–1.The temperature at which the free energy change for there action will be zero is-
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Which of the following is true for the r action H2O(
) 
H2O(g) at 100°C and1 atmosphere-</span
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For the electrical circuit shown in the figure, the potential difference across the resistor of 400Ω as will be measured by the voltmeter of resistance 400 is…..
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physicsGeneral
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The temperature at which the reaction Ag2O(s)→2Ag(s)+½O2(g) is at equilibrium is.........; Given ΔH=30.5KJmol–1 and ΔS=0.066KJK–1mol–1
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chemistry-General
