How many joules of energy per minute does humidifier require

Reference no: EM13658524

A certain humidifier operates by raising water to the boiling point and then evaporating it. Each minute 30 g of water at 20? C is added to replace the 30 g that are evaporated. The heat of fusion of water is 333 kJ/kg, the heat of vaporization is2256 kJ/kg, and the specific heat is 4190 J/kg · K. How many joules of energy per minute does this humidifier require?

A. 3.0 × 104

B. 8.8 × 104

C. 7.8 × 104

D. 1.1 × 105

E. 2.0 × 104

Reference no: EM13658524

Questions Cloud

Heat energy is exhausted into room as water is change to ice : 50.0 mL of water at 10.0 ºC is placed in the freezer compartment of a refrigerator by a coefficient of performance of 6.00. How much heat energy is exhausted into the room as the water is changed to ice at -15.0 ºC?

Aluminium bullet which embeds itself in the block : If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to merely knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.

Think about an infinite coaxial cable : Think about an infinite coaxial cable. In the region 0 2 into the page. In the region a 0 . What is the magnetic field in all space, and what value must k have so that the field vanishes for r>b?

Dolphin located in sea water at a temperature : Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 ..

How many joules of energy per minute does humidifier require : A certain humidifier operates by raising water to the boiling point and then evaporating it. Each minute 30 g of water at 20? C is added to replace the 30 g that are evaporated. The heat of fusion of water is 333 kJ/kg, the heat of vaporization is225..

Discover the partial pressure of the oxygen : A gas consists of 4.65 grams of oxygen and4.65 grams of nitrogen and occupies a volume of 0.50 liter at a temperature of345 K. Discover the number of gas molecules. Discover the partial pressure of the oxygen.

What is the wavelength of the x rays : Monochromatic x rays are incident on a crystal for which the spacing of the atomic planes is 0.440 nm. The first-order maximum in the Bragg reflection happens when the incident and reflected x rays make an angle of 39.4degrees with the crystal planes..

What lens power is needed to correct his nearsightedness : An individual is nearsighted; his near point is 17.0 cm and his far point is 53.0 cm. What lens power is needed to correct his nearsightedness?

User Account

All Pages