Physics - Heat & Thermo Question with Solution | TestHub

A liquid flows at the rate of $1/4200\mathrm{kg}/\mathrm{s}$ through a tube and is heated by a heater dissipating 25 W . The inflow and outflow liquid temperatures are $25^{\circ }\mathrm{C}$ and $30^{\circ }\mathrm{C}$ respectively. When the rate of flow is increased to $1/2100\mathrm{kg}/\mathrm{s}$ and the power of heater to 30 W , the inflow and outflow temperatures are unaltered. Find the rate of heat loss from the tube in watt.