An ideal gas that is confined in piston-cylinder assembly (i. e., closed system) goes from an initial state of 1 bar at 300 K to a final state of 3 bar at 300 K by the following two-step process. Process Path.
(Step 1) Heating at constant volume, and then
( Step 2) Cooling by holding the pressure constant.

Required:
a. Determine the initial and final molar mass.
b. Illustrate the two paths on a pressure-volume diagram. Clearly label the initial and final states, process steps and the direction of each step in the diagram.

Explanation:

From the given information;

Using ideal gas equation:

pV = nRT

when n = 1 mol

Initial molar volume =

Initial molar volume = 2494.2 L.mol⁻¹

Final molar volume =

Final molar volume = 831.4 L.mol⁻¹

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.

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explanation: