The standard molar entropy of an ideal gas (gamma=(4)/(3)) is 2.5Cal/k-mol at `25overset (o) C` and 1bar .The standard molar entropy of the gas at `323overset (o) C`and 1bar is (ln2=0.7)]

The standard molar entropy of H_(2)O (l) " is " 70 JK^(-1) mol^(-1) . Will the standard molar entropy of H_(2)O (s) be more, or less than 70 JK^(-1) mol^(-1) ?

Calculate the standard molar entropy change for the formation of gaseous propane (C_(3)H_(8)) at 293K . 3C("graphite") +4H_(2)(g) rarr C_(3)H_(8)(g) Standard molar entropies S_(m)^(Theta) (JK^(-1)mol^(-1)) are: C("graphite") = 5.7, H_(2)(g) = 130.7,C_(3)H_(5)(g) = 270.2

The standard entropies of CO_(2(g)), C_((s)), and O_(2(g)) are 213.5, 5.740 and 205 JK^-1 respectively. The standard entropy of formation of CO_2 is _________.

(i) Calculate the change in entropy for the fusion of 1 mole of ice. The melting point of ice is 273 K and molar enthalpy of fusion for ice = 6.0 kJ/mole. (ii) Calculate the standard of entropy change for the following reaction. {:(,H^(+)(aq), + OH(aq)to, H_(2)O(l)),(S^(@)(298 K)//JK^(-1)mol^(-1),0,-10.7,+70):}

Assertion : Molar volume of an ideal gas at 273 . 15 K and 1 bar is 22.4 L. Reason : Volume of a gas is inversely proportional to temperature .

The molar specific heats of an ideal gas at constant volume and constant pressure are respectively 4.98 and 6.96 cal mol^(-1) K^(-1) . If the molecular weight of the gas be 32, then calculate the root means square speed of the molecule of the gas at 120^@ C . (1 cal = 4.2 J)

When 5 moles of an ideal gas is expended at 350 K reversibly from 5 L to 40 L, then the entropy change for the process is (R = 2 cal mol^-1 K^-1 )

The enthalpy of fusion of water is 1.435kcal//mol .The molar entropy change for the melting of ice at 0^(@)C is

The density of O_2 gas at 127^o C and 4.0 atm pressure is (R = 0.082 L atm K^-1 mol^-1 )

Calculate the work done when 1 mol of an ideal gas is compressed reversibly from 1 bar to 4 bar at a constant temperature of 300 K