[" For a perfectly crystalline solid "C_(p,m)=aT^(3)" ,where "a" is constant.If "C_(p,m)" is "0.42J/K" mol at "10],[" molar entropy at "20K" is : "]

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

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

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)=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)=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 cyrstalline solid C_(p,m)= a T^(3) + bT , where a and b are constants. If C_(p,m) is 0.40 J/K mol at 10K and 0.92 J/K mol at 20K, then molar entropy at 20K is ?