Home
Class 12
CHEMISTRY
Calculate the entropy change for vapouri...

Calculate the entropy change for vapourisation of water if latent heat of vapourisation for water is 540 cal/g. (`K_(b)` for water `=0.51 K. kg "mole"^(-1)`)

A

1.45 cal /mole -K

B

26.3 cal /mole-K

C

52.6 cal/mole-K

D

1.87 cal/mole-K

Text Solution

AI Generated Solution

To calculate the entropy change for the vaporization of water, we can use the following steps: ### Step 1: Identify the given values - Latent heat of vaporization (ΔH_v) = 540 cal/g - Boiling point of water (T_b) = 100°C = 373 K (in Kelvin) - Molar mass of water (M) = 18 g/mol - R (gas constant) = 2 cal/(K·mol) ...
Promotional Banner

Similar Questions

Explore conceptually related problems

Calculate the entropy change for vaporization of water if latent heat of vaporization for water is 2.26 kJ/gram. The K_(b) for H_(2)O is 0.51 K/molality

Calculate the boiling point of water at 700mm pressure of Hg . The heat of vaporisation of water is 540 "cal' g .

Calculatte the molal elevation constant of water if molar enthalpy of vapourisation of water at 373K is 40.585 kJ mol^(-1) .

Calculate change in entropy when 5g of pure ice melts to form water at 0^(@)C Given latent heat of ice is 80cal//g at 0^(@)C .