Entropy (S)

Why diamond has lower entropy than graphite ?

Define the term entropy. Why is it a state function? Explain the effect of increased temperature on the entropy of a substance.

What is the effect of increasing temperature on the entropy of the substance ?

What happens to the entropy when the rubber band is stretched ?

What happens to the entropy when the egg is boiled hard ?

What are the units of entropy ?

What is entropy ?

Entropies is expressed in:

In which of the following entropy decreases ?

Complete the following equation:

$∆\mathrm{S} = \frac{?}{\mathrm{T}}$

The question mark in the above equation indicates the amount of heat supplied in a _____ (reversible / irreversible) process.

Predict the sign of entropy change for the following process. Extraction of salt from sea water.

Predict the sign of entropy change for the following process. Burning of rocket fuel.

Predict the sign of entropy change for the following process. Freezing of water

Predict the sign of entropy change for the following process. Melting of ice.

Predict the sign of entropy change for the following process. Crystallization of dissolved substance.

Predict the sign of entropy change for the given reaction: 

$2{\mathrm{H}}_2 \left(\mathrm{g}\right) + {\mathrm{O}}_2 \left(\mathrm{g}\right) \to 2{\mathrm{H}}_2\mathrm{O} \left(\mathrm{g}\right)$

Predict the sign of entropy change for the given reaction: 

${\mathrm{CaC}}_2{\mathrm{O}}_4 \left(\mathrm{s}\right) \to {\mathrm{CaCO}}_3 \left(\mathrm{s}\right) + \mathrm{CO} \left(\mathrm{g}\right)$

Predict the sign of entropy change for the given reaction: 

${\mathrm{O}}_2 \left(\mathrm{g}\right) + 2{\mathrm{SO}}_2 \left(\mathrm{g}\right) \to 2{\mathrm{SO}}_3 \left(\mathrm{g}\right)$