Question

Find out the degree of freedom of the given equilibrium h2o(s) h2o (g) *

Answer 1

Answer: ∆g > 0. For the given reaction: H2O(s)==>H2O(l). T = 260 k. P = 1 atm. At STP for fusion of ice( P = 1 atm ; T = 273k),.

Answer 2

The degree of freedom of the given equilibrium is 1

• The number of degrees of freedom is the number of independent intensive variables required to define the thermodynamic state of a system.
• Phase rule for non reactive system states F = C - P + 2

                                                 where F = degrees of freedom

                                                            C = Number of components

                                                            P = Number of phases

• Here, C = 1 that is water
• P = 2 that is solid and gas
• So, F = 1 - 2 + 2 = 1
• Degree of freedom of given equillibrium is 1.

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