Question & Answer: Find the specific heat of a substance that required 2.4 times 10^3 J of heat when 32 g were…..

Find the specific heat of a substance that required 2.4 times 10^3 J of heat when 32 g were heated from 25 degree C to 64 degree C. How much heat is released when 70 g of steam are cooled from 105 degree C to 23 degree C? Octane, one of the major components in gasoline, has a vapor pressure of 12.90 torr at 25 degree C and a vapor pressure of 144.9 torr at 75 degree C. Calculate the heat of vaporization for octane.

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