Explain how much heat is extracted from the outside

Reference no: EM13658225

Suppose heat a 1000m3 room from 20C to 30C by using a heat pump. Presume the heat is achieved completely by the air at a constant density of 1.239mg ml-1, absorbing heat. The outside temperature is -15C. Explain how much heat is extracted from the outside and how much work must be performed?

Reference no: EM13658225

Questions Cloud

Potential dissimilarity among the cylindrical shells : A capacitor is constructed of two concentric conducting cylindrical shells. The radius of the inner cylindrical shell is2.40*10-3 m, and that of the outer shell is 2.57*10-3 m. When the cylinders carry equal and opposite charges of magnitude1.79*10-1..

State the main group elements generally increases : State whether each of the following properties of the main group elements generally increases or decreases a) From left to right across a period b) From top to bottom within a group- metallic character, atomic size, ionization energy, acidity of oxid..

Determine its change in temperature : A 93.9 gram lead ball is dropped from rest from a height of 4.72 meter. The collision between the ground and the ball and is totally inelastic. determine its change in temperature

Calculate the angular speed of the ball and rod : A cylindrical rod 22.0 centimeter long with a mass of 1.20 kilogram and a radius of 1.50 centimeter has a ball of diameter of 8.20 centimeter and amass of 2.00 kilogram attached to one end. Calculate the angular speed of the ball and rod

Explain how much heat is extracted from the outside : Presume the heat is achieved completely by the air at a constant density of 1.239mg ml-1, absorbing heat. The outside temperature is -15C. Explain how much heat is extracted from the outside and how much work must be performed

Explain when the agcl just starts to precipitate : Ag+ is added to a solution of 0.0018 M Cl- and 0.0018 M SCN-. Define the AgSCN precipitates first (Ksp = 1.0 × 10-12), followed by the AgCl (Ksp = 1.8 × 10-10). Explain what percentage of the SCN- is still in solution not precipitated Explain when..

Compute the density of the block : A block of wood weighs 50.0 Newton in air. A sinker is attached to the block, and the weight of the wood-sinker combination is 220 Newton when the sinker alone is immersed in water. Compute the density of the block

Determine how far are you from the lens : You are standing in front of a lens that projects an image of you onto a wall 3.00 meter on the other side of the lens. This image is three times your height. Determine how far are you from the lens

What is her average speed over the entire trip : A person drives a car at a constant speed of 90 km/h along a straight line from point A to point B and then drives back along the line from B to A at a constant speed 110 km/h. What is her average speed over the entire trip?

User Account

All Pages