The explanation is to be stated for the fact that, almost all metals in nature are found as ionic compounds in ores instead of being in the pure state. Method to extract metals from their ore is to be stated. Concept introduction: Naturally occurring substance from which metals can be extracted economically is known as ore. To explain: The fact that almost all metals in nature are found as ionic compounds in ores instead of being in the pure state. Method to extract metals from their ore is to be stated.

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5. Compressibility (6 points total). The isothermal compressibility is a measure of how hard/easy it is to compress an object (how squishy is it?) at constant temperature. It is др defined as Br=-()=-(200²)T' (a) You might wonder why there is a negative sign in this formula. What does it mean when this quantity is positive and what does it mean when this quantity is negative? (b) Derive the formula for the isothermal compressibility of an ideal gas (it is very simple!) (c) Explain under what conditions for the ideal gas the compressibility is higher or lower, and why that makes sense.

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Chapter 21, Problem 20Q

Interpretation Introduction

Interpretation: The explanation is to be stated for the fact that, almost all metals in nature are found as ionic compounds in ores instead of being in the pure state. Method to extract metals from their ore is to be stated.

Concept introduction: Naturally occurring substance from which metals can be extracted economically is known as ore.

To explain: The fact that almost all metals in nature are found as ionic compounds in ores instead of being in the pure state. Method to extract metals from their ore is to be stated.

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