If you fill your car tire to a pressure of 220.6 kPa on a hot summer day when the temperature is 35 °C, what is the pressure on a cold winter day when the temperature is -15 °C? Assume no gas leaks out between measurements and the volume of the tire does not change. (a) 262 kPa (b) 184.8 kPa (c)-94.5 kPa (d) 12.4 kPa (e) 94.5 kPa

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.