Calculate KB for water latent heat of vaporization for water is 540 ca

1.	Calculate KB for water latent heat of vaporization for water is 540 cal per gram
Answer» Solution verified Verified by Toppr Correct OPTION is A 26 cal.K −1 mol −1 Solution:- (A) 26cal/mol−K As we KNOW that, ΔS= T ΔH ΔH=540cal/g Mol. wt. of water =18g ΔH (PER mole) =ΔH (per gm) ×Mol. wt. ΔH (per mole) =540×18=9720cal/mol Now, as we know that, ΔS= T ΔH GIVEN T=100℃=(273+100)=373K ∴ΔS= 373 9720 =26cal/(mol.K) PLEASE MARK ME AS BRAINLISTS

Calculate KB for water latent heat of vaporization for water is 540 cal per gram

Answer»

Solution

verified

Verified by Toppr

Correct OPTION is

26 cal.K

−1

mol

−1

Solution:- (A) 26cal/mol−K

As we KNOW that,

ΔS=

ΔH

ΔH=540cal/g

Mol. wt. of water =18g

ΔH

(PER mole)

=ΔH

(per gm)

×Mol. wt.

ΔH

(per mole)

=540×18=9720cal/mol

Now, as we know that,

ΔS=

ΔH

GIVEN T=100℃=(273+100)=373K

∴ΔS=

373

9720

=26cal/(mol.K)

PLEASE MARK ME AS BRAINLISTS