The thermal energy balance equation for heat exchange is as follows (3 correct answers): eta =(Q_(1)-Q_(1oss))/(Q_(1))=(Q_(2))/(Q_(1)) Q_(1)=G_(1)c_(p1)(t_(1)'-t_(1)'')=G_(1)(h_(1)'-h_(1)'') D Q_(2)=Kcdot Fcdot Delta t D Q_(2)=G_(2)c_(p2)(t_(2)''-t_(2)')=G_(2)(h_(2)''-h_(2)') Q_(1)=G_(1)c_(p1)(t_(1)'-t_(1)'')cdot eta _(1)=G_(2)c_(p2)(t_(2)''-t_(2)') Q_(1)=W_(1)cdot delta t_(1)cdot eta =W_(2)cdot delta t_(2) Q_(1)-Q_(lows)=eta cdot Q_(1)=Q_(2)

The correct answers are:1. 2. 3. Explanation:1. The thermal energy balance equation represents the efficiency of heat exchange, where is the heat transferred to the first object, is the heat loss, and is the heat transferred to the second object.2. The equation represents the heat transfer to the first object, where is the mass flow rate, is the specific heat capacity of the first object, and and are the temperature and enthalpy changes of the first object.3. The equation represents the heat transfer to the second object, where is the mass flow rate, is the specific heat capacity of the second object, and and are the temperature and enthalpy changes of the second object.