Determine the value of Delta H and Delta U for the reversible isothermal evaporation of 90.0 g of water at 100^(@)C . Assume that water behaves a an ideal gas and beat of evaporation of wager is 540 cal/g (R = 2.0 cal mol^(-1) K^(-1))
For the reaction at 300 K A(g)hArrV(g)+S(g) Delta_(r)H^(@)=- 30 kJ//mol, Delta_(r)S^(@)=-0.1K^(-1).mol^(-1) What is the value of equilibrium constant ?
If a+b+c=0, then what is the value of a^2/(bc)+b^2/(ca)+c^2/(ab)
The standard enthalpy of formation of gaseous H_(2)O at 298 K is -241.82 kJ/mol. Calculate DeltaH^(@) at 373 K given the following values of the molar heat capacities at constant pressure : H_(2)O(g)=33.58 " JK"^(-1)" mol"^(-1), " "H_(2)(g)=29.84 " JK"^(-1)" mol"^(-1), " "O_(2)(g)=29.37 " JK"^(-1)" mol"^(-1) Assume that the heat capacities are independent of temperature :
What would be the molar mass of a compound if 6.21g of it dissolved in 24.0 g of chloroform form a solution that has a higher boiling point of 68.04^@C and the boiling point of pure chloroform is 61.7^C and the boiling point elevation constant K_b for chloroform is 3.63^@C/m .
A solution of glycerol (C_(3) H_(8) O_(3)) in water as prepared by dissolving some glycerol in 500 g of water. This solution has a boiling point of 100 . 42^(@) C. What mass of glycerol was dissolved to make the solution ? K_(b) for H_(2) O = 0 . 512 K kg mol^(-1)
From the following date , mark the opation(s) where Delta H is correctly written for the given reaction . Given: H+(aq) +OH-(aq) to H_(2)O(l), DeltaH=-57.3 kJ DeltaH_(solution) HA(g)=-70.7 kJ"mole" DeltaH_(solution) BOH(g)=- 20 kJ"mole" DeltaH_("ionzatoin") of HA=15 kJ//"mole" and BOH is a strong base.
The reaction, 2NO_2 rarr 2NO+ O_2 has an activation energy of 110 kJ mol^-1 . At 400^@C , the rate constant is 7.8 mol^-1 L s^-1 . What is the value of rate constant at 430^@C ?
Consider the following reaction: H_(2)O(l)toH_(2)O(g)" "DeltaH_(1)=44kJ 2CH_(3)OH(l)+3O_(2)to4H_(2)O(l)+2CO_(2)(g)" "DeltaH_(2)=-1453kJ What is the value of DeltaH for second reaction if water vapour instead of liquid water is formed as product?
NARENDRA AWASTHI-DILUTE SOLUTION-Level 3 - Match The Column
