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1. A car is driving at speed of 80 mph in a circular track with a radius of 1500
ft. The driver applied brake to decelerate the car and after 6 seconds, the speed
decreases to half the original speed. What is the acceleration of the car at the
instant after the brakes have been applied? At ft/s2
A. 9.18 C. 13.4
B. 9.78 D. 14
m= x
m= √5x; (0,5)
m= 2x⁴/x; (0,5)
Note: the slope m = dy/dx
At the boiling point of a completely immiscible system of two liquids, the partial of pressure component in the vapour phase is. a) Always less than its vapour pressure at that temperature b) Always greater than its vapour pressure at that temperature. c) Equal to its vapour pressure at that temperature
d) Dependent on nature and the amount of the other component in the liquid phase
lon exchange resin is
a) Linear substance. b) Low molecular weight substance
c) Organic polymer with porous structure
d) Soluble
Adsorption of gases on solids a) Increases with increasi temperature
b) Decreases with increasing temperature. c) Decreases with decreasing temperature
d) Remains constant with increasing temperature
m= 2x - 2; (0,5)
Note: the slope m = dy/dx
Adsorption of gases on solids a) Increases with increasi temperature
b) Decreases with increasing temperature. c) Decreases with decreasing temperature
d) Remains constant with increasing temperature
In a binary distillation, the separation of the components is easier if the relative volatility.(α) is
a)α >>1
b) α << 1 c)α=l
d) None of the above
