In an industrial processing plant, a continuous stream of mineral oil is pumped to the top of a vertical tower and falls through a height of 550 m into a storage tank. Assume that all the gravitational potential energy of the falling oil is converted entirely into thermal energy within the oil upon impact, and that no energy is transferred to the surroundings.
Specific heat capacity of the oil=2200 J kg−1 K−1 \text{Specific heat capacity of the oil} = 2200\text{ J kg}^{-1}\text{ K}^{-1} Specific heat capacity of the oil=2200 J kg−1 K−1 Acceleration due to gravity g=9.81 m s−2 \text{Acceleration due to gravity } g = 9.81\text{ m s}^{-2} Acceleration due to gravity g=9.81 m s−2What is the temperature increase of the oil after impact?
0.25 K0.25\text{ K}0.25 K
2.5 K2.5\text{ K}2.5 K
4.9 K4.9\text{ K}4.9 K
0.41 K0.41\text{ K}0.41 K
84 exam-style questions on AQA A Level Physics Force, energy and momentum, covering Scalars and vectors, Moments, Motion along a straight line, Projectile motion, Newton's laws of motion, Momentum, Work, energy and power, and Conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.