Steam enters a horizontal pipe operating at steady state with a

specific enthalpy of $3000$ kJ$/$kg and a mass flow rate of $0\mathrm{.}5$ kg$/$s$.$ At the

exit, the specific enthalpy is $1700$ kJ$/$kg$.$ If there is no significant

change in kinetic energy from inlet to exit, the rate of heat transfe

between the pipe and its surroundings is

o $2600$ kW from the pipe to the surroundings.

o $650$ kW from the pipe to the surroundings.

o $650$ kW from the surroundings to the pipe.

o $2600$ kW from the surroundings to the pipe.