A battery with f. e.m. of 5.4 V and with internal resistance of 0.6 ohm it powers a device using a resistance of 3 ohm; How long has it taken for the appliance to consume 1 kWh?

if i am correct, your answer choices are:

a. the temperature remains constant

b. the temperature increases at a constant rate

c. heat flows at a constant rate into the system

d. heat flows at a constant rate out of the system

e. no heat flows into or out of the system

if so, then the answer is e. no heat flows into or out of the system.