How much heat is releasedby the water when it freezes

Reference no: EM13654682

To help prevent frost damage, fruit growers sometimes protecttheir crop by spraying it with water when overnight temperatures are expected to go below the freezing mark. When the water turns toice during the night, heat is released into the plants, therebygiving them a measure of protection against the fallingtemperature. Suppose a grower sprays 8.91 kg of water at 0°Conto a fruit tree.

(a) How much heat is releasedby the water when it freezes?

(b) How much wouldthe temperature of a 179-kg tree rise if it absorbed the heatreleased in part (a)? Assume that the specific heat capacity of thetree is 2.5 x 103 J/(kg C°) and that no phase changeoccurs within the tree itself.

Reference no: EM13654682

Questions Cloud

Statue of liberty is a monument in new york city : which would make the better thesis? Which one is arguable and has multiple points of view? Example two is the better thesis because it is an argument.

Determine the number of gas molecules : A gas consists of 4.95 grams of oxygen and 4.95 grams of nitrogen and occupies a volume of 1.15 liter at a temperature of 330 K. Find the number of gas molecules.

A slide projector has a converging lens : A slide projector has a converging lens whose focal length is117.00 mm. (a) How far (in meters) fromthe lens must the screen be located if a slide is placed 120.01 mmfrom the lens? If the slide measures 24.0 mm (height) x 36.0 mm(width), what are the..

What is the chance : What is the chance (rounded to the nearest hundredth)

How much heat is releasedby the water when it freezes : To help prevent frost damage, fruit growers sometimes protecttheir crop by spraying it with water when overnight temperatures are expected to go below the freezing mark. How much heat is releasedby the water when it freezes

How far from the van is the object actually located : The owner of a van installs a rear-window lens that has a focallength of -0.330 m. When the owner looks out through the lens at anobject located directly behind the van, the object appears to be0.200 m from the back of the van, and appears to be 0..

Discuss the influence papal patronage : Discuss the influence Papal patronage had upon High Renaissance work, especially the career of Michelangelo, whose Sistine Chapel has only recently been restored to something like its original appearance.

Explain what volume of gas will be measured on the apparatus : In a calibration experiment, a 1.04 millimole sample of Na2CO3 gave 0.87 millimoles of CO2 gas. If a 0.387 g of pure Na2CO3 was reacted with excess acid, what volume of gas will be measured on this apparatus (in Litres at STP)

Describe the relevant plot elements : Describe the RELEVANT plot elements that include the moral dilemma. Specify what was the moral dilemma you are discussing. Be brief!

User Account

All Pages