A fixed number of moles of monatomic ideal gas is initially in a state where the pressure is 110 kPa and the volume is 0.700 liters. Then, the temperature of the gas is doubled, by the following two-step process. First, there is a constant-volume process that brings the pressure to (8/5) of the original pressure. This is followed by a constant-pressure process that increases the volume of the gas until the temperature is double the temperature in the initial state (specified in the first sentence of this part). Calculate the net work done by the gas in this two-step process.

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

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