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Prior to the discovery that freon-12 (cf2cl2) is harmful to the earth’s ozone layer it was frequently used as the dispersing agent in spray cans for hair spray etc. estimate the pressure that a can of hair spray using freon-12 has to withstand at 40 °c, the temperature of a can that has been standing in sunlight. the enthalpy of vaporization of freon-12 at its normal boiling point of −29.2 °c is 20.25 kj mol−1; assume that this value remains constant over the temperature range of interest.
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Prior to the discovery that freon-12 (cf2cl2) is harmful to the earth’s ozone layer it was frequentl...
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