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The thermodynamic property that measures...

The thermodynamic property that measures the extent of molecular disorder is called entropy. Entropy change of phase transformation can be calculated using Trouton's formula `(DeltaS = DeltaH//T)`. In the reversible adiabatic process, however, `DeltaS` will be zero. the rise in temperature in isobaric and isochoric conditions is found to increase the randomness or entropy of the system.
`DeltaS = 2.303 C log (T_(1)//T_(2))`
When `1` mol of an ideal gas is compressed to half of its volume, its temperature becomes double. Then the change in entropy `(DeltaS)` would be

A

`C_(V) In 4`

B

`C_(P) In 2`

C

`C_(V)R In4`

D

`(C_(V)-R)In 4 xx C_(P)`

Text Solution

Verified by Experts

`DeltaS = 2.303 C_(P)log_(10) ((V_(1))/(V_(2)))`
`= C_(P) In_(10) ((V_(1))/(V_(2))) = C_(P) In_(e) ((1)/(1//2))`
`= C_(P) In_(e)2`
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The thermodynamic property that measures the extent of molecular disorder is called entropy. Entropy change of phase transformation can be calculated using Trouton's formula (DeltaS = DeltaH//T) . In the reversible adiabatic process, however, DeltaS will be zero. the rise in temperature in isobaric and isochoric conditions is found to increase the randomness or entropy of the system. DeltaS = 2.303 C log (T_(1)//T_(2)) The entropy change in an adiabatic process is

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The thermodynamic property that measures the extent of molecular disorder is called entropy. Entropy change of phase transformation can be calculated using Trouton's formula (DeltaS = DeltaH//T) . In the reversible adiabatic process, however, DeltaS will be zero. the rise in temperature in isobaric and isochoric conditions is found to increase the randomness or entropy of the system. DeltaS = 2.303 C log (T_(1)//T_(2)) The melting point of a solid is 200K and its latent heat of fusion is 400cal mol^(-1) . The entropy changes for the fusion of 1 mole of the solid (in cal K^(-1)) at the same temperature would be

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Entropy is a measure of randomess of system. When a liquid is converted to the vapour state entropy of the system increases. Entropy in the phase transformation is calculated using Delta S = (Delta H)/(T) but in reversible adiabatic process Delta S will be zero. The rise in temperature in isobaric or isochoric process increases the randomness of system, which is given by Delta S = "2.303 n C log"((T_(2))/(T_(1))) C = C_(P) or C_(V) Entropy change in a reversible adiabatic process is

Entropy is a measure of randomess of system. When a liquid is converted to the vapour state entropy of the system increases. Entropy in the phase transformation is calculated using Delta S = (Delta H)/(T) but in reversible adiabatic process Delta S will be zero. The rise in temperature in isobaric or isochoric process increases the randomness of system, which is given by Delta S = "2.303 n C log"((T_(2))/(T_(1))) C = C_(P) or C_(V) The change in entropy when 1 mole O_(2) gas expands isothermally and reversibly from an initial volume 1 litre to a final volume 100 litre at 27^(@)C

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