The wall of a room is made of plywood that has a thickness of 3.00 cm and an area of 18.0 m?. The room temperature is maintained at 25.0 °C higher than outside temperature. Ignore other heat loss mechanisms except by conduction. Given that: Thermal conductivity of plywood, kpływood = 0.0800 W m¯1 °C-' (a) Find the magnitude of the rate of heat loss through the wall. (b) culate the amount of heat loss through the wall in half a day.

Subject: Thermodynamics

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Please help to solve complete solution.

This Concepts revolves around thermodynamics and this practice example may need a PV diagram Directions are below

In a cylinder of an automobile engine, immediately after combustion the gas is confined to a volume of 53.0 cm³ and has an initial pressure of 3.60 × 106 Pa. The piston moves outward to a final volume of 300 cm³, and the gas expands without energy transfer by heat. (Assume the gas in the engine is diatomic with y 1.40.) (a) What is the final pressure of the gas (in kPa)? = 317.920813906 kPa (b) How much work is done by the gas in expanding (in J)? 238.559389571 J (c) What If? If the engine operates in an ideal Otto cycle and 0.0125 mol of fuel-air mixture is injected into the cylinder during the intake stroke, what are the temperatures (in K) at points A, B, C, and D of the cycle as shown in the figure? P TA TC Adiabatic C processes ΤΑ A B TB То Тр = = = || B V V2 V₁ K K K K K

Water melts as temp increases because : - chemical potential of the liquid is lower than that of gas - liquid and solid form eutectic mixture -chemical potential of the liquid and solid become equal

During a test on a diesel engine used for driving a dc generator, the following observations were made. The engine torque is 1290 N-m running at 360 rpm. The quantity of fuel supplied to the engine was 10.8 kg/h, the calorific value of fuel being 44 MJ/kg. The air used/kg fuel is 19 kg. The exhaust gases were passed through an exhaust gas calorimeter for which the observations were as follows: Water circulated through the calorimeter = 150 gal/h, temperature rise of water is 30°C, temperature of the exhaust gases at exit from the calorimeter = 87°C, specific heat of exhaust gases = 1.04 kJ/kg-K, ambient temperature = 30°C. If the heat lost to the jacket cooling water was 94% of the brake power of the engine, draw up an energy balance sheet of the engine.

Please I request you to answer correctly without copying the answer from book as the question is different

Please answer number 6 only (Complete solution, with diagram/illustrate or analysis/explanation etc.) That would be soooo helpful and appreciated, thank you in advance!!