NEET Chemistry Thermodynamics Online Test Set B

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Question 1

Question

For which of these reactions will there be ëÓS positive?

Answer

CaCO3(s)→ CaO(s) + CO2(g) 

H2(g) + I2(g) →2HI(g)

N2(g) + 3H2(g)→2NH3(g)

H2O(g) →H2O(l)