If you were trying to find a substance that increases in temperature rapidly, you should choose a substance

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Low Heat Capacity

Explanation:-

Heat capacity is the amount of heat required to raise the temperature of a body by 1 C.

So if the heat capacity is low, then less heat is required to raise the temperature. Thus if the heat needed to be supplied is less, then the temperature rises rapidly when heat gets supplied.

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023