For an allotropic change:
`A(s)to B(s), deltaG_(400)^(@)=20kJ//"mole"`
If molar volume A and B are `12mL//"mole"` and `10mL//"mole"` respectively then calculate approximate pressure at which the two allotropes will be at equillibrium at 400K:

Enthalpies of solution of BaCl_(2)(s) and BaCl_(2).2H_(2)O(s) are -20 kJ//"mole" and 8.0kJ//"mole" respectively. Calculate heat of hydration of BaCl_(2)(s) .

Two gases H_2 and CO_2 are taken 1mol and 2mol respectively in a container of volume 100ml at 400K. Find pressure of the mixture

For a reaction A(s)to B(s), DeltaG_(300)^(@)=-2kJ//"mole" Where A and B ar allotropic forms. At what external pressure will the reaction attain equillbrium at 300K, if specific volume of A and B are 10mL//g and 15mL//g respectively and molar mass of A is 40g:

4 KJ of heat is absorbed when 1 mole of ice melts at 0^(@)C and at constant pressure 1 atm . If molar volume of ice and water are 19 ml and 18 ml respectively, then [Take 1 atm=10^(5)Pa ]

Four balls A,B,C and D displace 10mL,24mL,15mL and 12mL of a liquid respectively when immersed completely the ball which will undergo the maximum apparent loss in weight will be

One mole of gas A and three moles of a gas B are placed in flask of volume 100 litres at 27°C. Calculate the total partial pressure of the gases in the mixture.

One mole of gas occupies a volume of 200 mL at 100 mm pressure . What is the volume occupied by two mole of gas at 400 mm pressure and at same temperature ?

For the reaction A(g)+2B(s)toC(l)+D(g)," "Delta H=-40 kJ//"mole" 10 mole of each A and B are mixed in a closed rigid container and allowed to react at 300 K. Calculate the heat transfer (in kJ) occurs in the process. [Use : R=8.3 "J"//"K-mole" ]