If $Δ H_{v a p o r i s a t i o n}$ of substance $X (l)$ (molar mass : $30 g / m o l$ ) is $300 J / g$ at its boiling point $300 K$ , then molar entropy change for reversible condensation process is:

30 J / m o l . K

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

- 300 J / m o l . K

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 30 J / m o l . K

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $30 J / m o l . K$
Solution:- (A) $30 J / m o l - K$
Given:-
${Δ H}_{v a p .} = 300 J / g$
Molar mass of $X = 30 g / m o l$
$∴ {Δ H}_{m o l a r} = 300 \times 30 = 9000 J / m o l$
Boiling point of substance $X, (T) = 300 K$
As we know that,
Molar entropy change, ${Δ S}_{m o l a r} = \frac{{Δ H}_{m o l a r}}{T} = \frac{9000}{300} = 30 J / m o l - K$
Hence the molar entropy change for the given process will be $30 J / m o l - K$ .

Suggest Corrections

Similar questions

If $Δ H_{v a p o r i s a t i o n}$ of substance X(1) (molar mass: 30 g/mol) is 300 J/g at its boiling point 300 K, then molar entropy change for reversible condensation process is

Q. If

△ H_{v a p o r i s a t i o n}

of substance

X (l)

(molar mass : 30 g/mol) is 300 J/g at it's boiling point 300 K, then molar entropy change for reversible condensation process is

Q. If

△ H_{v a p o r i s a t i o n}

of substance

X (l)

(molar mass:

30 g / m o l)

300 J / g

at it's boiling point

300 K

, then molar entropy change for reversible condensation process is____________.

Q. If

△ H_{v a p o r i s a t i o n}

of substance

X (l)

(molar mass :

30 g / m o l

) is

300 K

, then molar entropy change for reversible condensation process is:

Q. If

△ H_{v a p o u r i s a t i o n}

of substance

X (l)

(molar mass = 30 g/mol) is 300 J/g at its boiling point 300 K, molar entropy change for reversible condensation process is:

Join BYJU'S Learning Program

If ΔHvaporisation of substance X(l) (molar mass :30g/mol) is 300J/g at its boiling point 300K, then molar entropy change for reversible condensation process is:

If $Δ H_{v a p o r i s a t i o n}$ of substance $X (l)$ (molar mass : $30 g / m o l$ ) is $300 J / g$ at its boiling point $300 K$ , then molar entropy change for reversible condensation process is: