A2.64-kg copper part, initially at 400 k, is plunged into a tank containing 4 kg of liquid water, initially at 300 k. the copper part and water can be modeled as incompressible with specific heats 0.385 kj/kg ? k and 4.2 kj/kg k, respectively. for the copper part and water as the system, determine (a) the final equilibrium temperature, in k, and (b) the amount of entropy produced within the tank, in kj/k. ignore heat transfer between the system and its surrounding

a)

b)

Explanation:

Given:

mass of copper, initial temperature of copper, specific heat capacity of copper, mass of water, initial temperature of water, specific heat capacity of water,

a)

∵No heat is lost in the environment and the heat is transferred only between the two bodies:

Heat rejected by the copper = heat absorbed by the water

b)

Now the amount of heat transfer:

∴Entropy change

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds