Entropy Change in Isochoric Process

Q. Which of the following is the correct expression for $\Delta S$ in case of isochoric process?

1. 

2. 

3. 

4. 

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{\circ }C$ to ${300}^{\circ }C$ reversibly and isochorically?

1. $\frac{3}{2}R\ln \left(\frac{300}{200}\right)$
2. $\frac{5}{2}R\ln \left(\frac{573}{273}\right)$
3. $3R\ln \left(\frac{573}{473}\right)$
4. $\frac{3}{2}R\ln \left(\frac{573}{473}\right)$

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{o}C$ to ${300}^{o}C$ reversibly and isochorically is:

1. $\frac{5}{2}Rln\left(\frac{573}{273}\right)$
2. $\frac{3}{2}Rln\left(\frac{300}{200}\right)$
3. $3Rln\left(\frac{573}{473}\right)$
4. $\frac{3}{2}Rln\left(\frac{573}{473}\right)$
   
   

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{o}C$ to ${300}^{o}C$ reversibly and isochorically is:

1. $\frac{3}{2}Rln\left(\frac{300}{200}\right)$
2. $\frac{5}{2}Rln\left(\frac{573}{273}\right)$
3. $3Rln\left(\frac{573}{473}\right)$
4. $\frac{3}{2}Rln\left(\frac{573}{473}\right)$
   
   

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{\circ }C$ to ${300}^{\circ }C$ reversibly and isochorically?

1. $\frac{3}{2}R\ln \left(\frac{300}{200}\right)$
2. $\frac{5}{2}R\ln \left(\frac{573}{273}\right)$
3. $3R\ln \left(\frac{573}{473}\right)$
4. $\frac{3}{2}R\ln \left(\frac{573}{473}\right)$

Q. Which of the following is the correct expression for $\Delta S$ in case of isochoric process?

1. $\Delta S=n{C}_{p}ln\frac{T_2}{T_1}$

2. $\Delta S=n{C}_{p}ln\frac{T_1}{T_2}$

3. $\Delta S=n{C}_{v}ln\frac{T_2}{T_1}$

4. $\Delta S=n{C}_{v}ln\frac{T_1}{T_2}$

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{\circ }C$ to ${300}^{\circ }C$ reversibly and isochorically?

1. $\frac{3}{2}R\ln \left(\frac{300}{200}\right)$
2. $\frac{5}{2}R\ln \left(\frac{573}{273}\right)$
3. $3R\ln \left(\frac{573}{473}\right)$
4. $\frac{3}{2}R\ln \left(\frac{573}{473}\right)$

Q. Which of the following is the correct expression for $\Delta S$ in case of isochoric process?

1. $\Delta S=n{C}_{p}ln\frac{T_2}{T_1}$

2. $\Delta S=n{C}_{p}ln\frac{T_1}{T_2}$

3. $\Delta S=n{C}_{v}ln\frac{T_2}{T_1}$

4. $\Delta S=n{C}_{v}ln\frac{T_1}{T_2}$

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{o}C$ to ${300}^{o}C$ reversibly and isochorically is:

1. $\frac{3}{2}Rln\left(\frac{300}{200}\right)$
2. $\frac{5}{2}Rln\left(\frac{573}{273}\right)$
3. $3Rln\left(\frac{573}{473}\right)$
4. $\frac{3}{2}Rln\left(\frac{573}{473}\right)$
   
   

Q. The entropy change when two moles of ideal monoatomic gas is heated from ${200}^{\circ }C$ to ${300}^{\circ }C$ reversibly and isochorically?

1. $\frac{3}{2}R\ln \left(\frac{300}{200}\right)$
2. $\frac{5}{2}R\ln \left(\frac{573}{273}\right)$
3. $3R\ln \left(\frac{573}{473}\right)$
4. $\frac{3}{2}R\ln \left(\frac{573}{473}\right)$