For a perfectly crystalline solid `C_(p.m.)=aT^(3)+bT`,where a and b constant . If `C_(p.m.)is 0.40J//Kmol` at 10K and `0.92J//K "mol" at 20K` then molar entropy at 20k is:

For a perfectly crystalline solid C_(p,m)=aT^(3)+bT , where a and b are constant. If C_(p,m) is 0.40 J/K mol at 10 K and 0.92 J/K mol at 20 K, then molar entropy at 20 K is :

For a perfectly crystalline solid C_("p,m") =T^(3)+bT , where a & b are constant . If C_("p,m") is 0.04 J//k-"mole" at 10 K and io 0.92 J//K-"mole" at 20 k, Then molar entropy at 20 k is.

For a perfectly crystalline solid C_(p.m.)=aT^(3) , where ais constant. If C_(p.m.) is 0.42.J//K-"mol" at 10K, molar entropy at 10K is:

For a perfectly crystaline solid C_(p.m)=aT^(3) , where a is constant. If C_(p.m) is 0.42J//K-mol at 10 K , molar entropy at 10 K is:

Entropy of perfectly crystalline solid is taken as zero at 0 K.

V = k((P)/(T))^(0.33) where k is constant. It is an,

Heat capcaity of a solid A(s) given by aT^(3) in vicinity at abbsolute zero . Taking heat capacity to be aT^(3) ferom 0 K and 10 K, from 10 K to noramal M.P at 150 K and c from 150 K to 200 K , find the absolute entropy of A(l) at 200 K . Given a=0.5xx10^(-3) J(" k mole" ) b=15 J (K mole) c=20 J (K mole) DeltaH_(fusion)=+30 KJ// "mole"

The molar internal enegry of a gas over a temperature range is expressed as: U_(m) (T) =a +bT +cT^(2) , where b = 16 J mol^(-1)K^(-1) and c = 6 xx 10^(-3) J mol^(-1)K^(-2) . Find: a. C_(V,m)at 300K b. The entropy change when 1 mol of a gas is heated from 300K to 600K at constant volume.

A sample of an ideal gas is expanded to twice its original volume of 1m^(3) in a reversible process for which P = alphaV^(2) , where alpha = 5 atm m^(-6) . If C_(V,m) = 20 J mol^(-1)K^(-1) , determine moalr change in entropy (DeltaS_(m)) for the process.

The C_(p) and C_(v) of a gas are 20.834 and 12.520 J K^(-1) "mol"^(-1) respectively.What is the atomicity of the gas.