La resistance heater will heat a room (5m x 5m x 6m in size) within 10...

Question

Question

La resistance heater will heat a room (5m x 5m x 6m in size) within 10 minutes and raise the air temperature from 10°C to 28°

Answer 1

Answer #1

2 power of resistance P = mcpOT € € P= PVCpo I P= 1.2X5X5 X6 X1005x(28-10) LP-5427 W loxGo

Answer 2

Similar Homework Help Questions

Please be as detailed as you can be ! La resistance heater will heat a room...

Please be as detailed as you can be ! La resistance heater will heat a room (5m x 5m x 6m in size) within 10 minutes and raise the air temperature from 10°C to 28°C. Assuming no heat losses from the room and an atmospheric temperature of 100 kPa, determine the required power of the resistance heater. Assume constant specific heats at room temperature.
QUESTION 7 A 4m X 5m X 6m room is to be heated by a baseboard...

QUESTION 7 A 4m X 5m X 6m room is to be heated by a baseboard resistance heater. It is desired that the resistance heater be able to raise the air temperature in the room from 7 to 23°C within 15 min. Assuming no heat losses from the room and an atmospheric pressure of 100 kPa, determine the required power of the resistance heater. Assume constant specific heats at room temperature. Use R= 0.278 kJ/kg.K Cp=1.005 kJkgk Cv 0.718 kJ/kg.K...
A cylindrical electric heater is located at the centre of a room. The heater has an...

A cylindrical electric heater is located at the centre of a room. The heater has an outer diameter of 0.05 m, length of 0.6 m and emmisivity of 0.97. The surface temperature of this heater is maintained at 105 °C. The internal dimension of the room is 5m x 10m x 3m. The inner surface of this room's wall and air inside this room is maintained at 20 °C using an air conditioning system. The heat transfer coefficient between the...

4. The air in a 100 m3 balloon is electrically heated from 10 C to 35...

4. The air in a 100 m3 balloon is electrically heated from 10 C to 35 C in 12 minutes. Assuming that the balloon is well insulated, and atmospheric pressure is 100 kPa, how much electrical power will the resistance heater need to dissipate to heat up the balloon?
A 1500-W heater is designed to be plugged into a 120-V outlet

A 1500-W heater is designed to be plugged into a 120-V outlet. What current will flow through the heating coil when the heater is plugged in? I = A What is R , the resistance of the heater? How long does it take to raise the temperature of the air in a good-sized living room 3.0m x 5.0m x 8m by 10 degrees C? Note that the specific heat of air is 1006 J/(kg x degrees C) and the density...
A heater dissipates 1200 W of power when it is connected to a 190 V battery. What current...

A heater dissipates 1200 W of power when it is connected to a 190 V battery. What current will flow through the heater when it is connected to the battery? What is R, the resistance of the heater? How long does it take to raise the temperature of the air in a good-sized living room that is 5.00 m × 8.00 m × 10.0 m by 10.0∘C? Note that the specific heat of air is 1006 J/(kg⋅∘C) and the density of...

If a heater supplies 1.5×106 J/h to a room 3.5 m x 4.6 m x 3.0...

If a heater supplies 1.5×106 J/h to a room 3.5 m x 4.6 m x 3.0 m containing air at 18 ∘C and 1.0 atm, by how much will the temperature rise in one hour, assuming no losses of heat or air mass to the outside? Assume air is an ideal diatomic gas with molecular mass 29 g/mol.
An electric heater is used to heat up 3.00× 102 kg of water from 10.0°C to...

An electric heater is used to heat up 3.00× 102 kg of water from 10.0°C to 80.0°C in twenty minutes. Assuming that the heater is connected to a 120-V (rms) source and all electric power is used to heat the water, what is the resistance of the coil in the heater? The specific heat of water is 4186 J/(kg K).
A physics student uses a 115.00 V immersion heater to heat 330.00 grams of water for...

A physics student uses a 115.00 V immersion heater to heat 330.00 grams of water for herbal tea. During the two minutes it takes the water to heat, the physics student becomes bored and decides to figure out the resistance of the heater. The student starts with the assumption that the water is initially at the temperature of the room Ti = 25.00°C and reaches Tf = 100.00°C.The specific heat of the water is c = 4180 J/(kg · °C)....

12.5 x 10J c) How long will it take to heat a room from 10 Cto2Cif...

12.5 x 10J c) How long will it take to heat a room from 10 Cto2Cif the heater consumes d) How many kilowatt-hours of electricity are used during the time calculated in part (c)? e) What is the cost (with electrical energy at 25 cents per kWh) of running the heater? 6. A metal wire has a resistance ofB1 Qunder coom temperature conditions of20°c)When the wire is he esistance increases by0.70 )What is the temperature coefficient of resistivity of this...