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Two oils with viscosity indices (VI) 0% and 100% are selected so that their viscosities at 100 °C are equal to that of t
Posted: Tue Apr 26, 2022 3:33 pm
by answerhappygod
- Two Oils With Viscosity Indices Vi 0 And 100 Are Selected So That Their Viscosities At 100 C Are Equal To That Of T 1 (20.88 KiB) Viewed 40 times
Two oils with viscosity indices (VI) 0% and 100% are selected so that their viscosities at 100 °C are equal to that of the unknown oil. Find the Vi of the unknown oil [%] considering: Absolute viscosities of the oils: VI 0% oil: 230 mPa's @38°C; 32 mPa-s @ 100 °C VI 100% oil: 32 mPa-s @38 °C; 32 mPa-s @ 100°C Vi unknown oil: 120 mPa's @38 °C; 32 mPa-s @ 100 °C a. 68 b. 80 C. 25 d. 56 e. 44