GATE XE · 2021 · XE-F
Question 13: Polymer rheology
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Question 13
XE-FNAT2 marksNeeds review
The plateau modulus of polystyrene has a value of 0.2 × 10⁶ Pa at 150 °C. Given, the density of polystyrene is 1.05 g/cm³, the universal gas constant,
= 8.3 J K⁻¹ mol⁻¹, and the monomer molecular weight is 104 g/mol. The molecular weight between entanglements (rounded off to the nearest integer) of polystyrene chains is ______ g/mol.Log in to check the answer
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2021XE-F
GATE XE 2021 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-F
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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