Water enters a counter flow, double-pipe heat exchanger at 45 c, flowing at the rate of 0.5 kg/s. it is heated by oil (cp = 1.884 kj/kg. k) flowing at the rate of 1 kg/s from an inlet temperature of 105 c. for an area of 18.0 m2 and an overall heat transfer coefficient of 340w/m^2.k, determine the total heat transfer rate.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.