Carbon dioxide (co2) at 1 bar, 300 k enters a compressor operating at steady state and is compressed adiabatically to an exit state of 10 bar, 550 k. the co2 is modeled as an ideal gas, and kinetic and potential energy effects are negligible. for the compressor, determine: (a) the work input, in kj per kg of co2 flowing, (b) the rate of entropy production, in kj/k per kg of co2 flowing, and (c) the percent isentropic compressor efficiency.

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

that tool would be a compass