Question

Q13. Assertion. The entropy decreases when the temperature of a crystalline solid is raised from zero

kelvin to 115 Kelvin.

Reason:On mising the temperature from 2) to 115 Kelvin the constituent particles are static and entropy

is maximum.​

Answer 1

Explanation:

If temperature is raised to 115K, these begin to move and oscillate about their equilibrium positions in the lattice and system becomes more disordered, hence entropy increases. In this reaction, the reactant, NaHCO3 is a solid and it has low entropy.

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