GATE 2025 XE-F Solution | Q110 Polymer Science | Which Viscosity is Dimensionless?

Detailed solution for GATE 2025 Engineering Sciences (XE) - Section F (Polymer Science & Engineering), Question 110.

Topic: Polymer Rheology / Solution Viscosity Question Type: 1 Mark (Objective)

📝 Problem Statement: "Which one of the following measures of viscosity is dimensionless?" Options analyzed:

Relative Viscosity

Specific Viscosity

Reduced Viscosity

Inherent Viscosity

Zero Shear Viscosity

In this video: We break down the definitions and units of different viscosity measures used in polymer science to identify which one is truly dimensionless.

⏱️ Timestamps: [00:00] Question 110 Reading & Options [00:23] Relative Viscosity (Dimensionless check) [00:53] Specific Viscosity (Dimensionless check) [01:08] Reduced Viscosity (Units: mL/g) [01:35] Inherent Viscosity (Units: mL/g) [01:52] Zero Shear Viscosity (Units: Pa·s) [02:53] Final Answer Conclusion

✅ Correct Answer: Specific Viscosity (and Relative Viscosity)

Subscribe for more GATE XE Polymer Science solutions!

#GATE2025 #GATEXE #PolymerScience #Rheology #Viscosity #EngineeringSciences #GATEExam #ChemicalEngineering #Polymers #GATEPrep