The inner and outer surfaces of a 0.5-cm-thick, 2-m × 2-m window glass during winter are 10 ◦c and 3 ◦c, respectively.

if the thermal conductivity of the glass is 0.78 w/m·k, determine the amount of heat loss (not the rate of loss) through the glass over a period of 5 hr.

what would your answer be if the thickness of the glass was 1 cm?

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Burgers vector is generally parallel to the dislocation line. a)-true b)-false