"some substances cannot exist in the gaseous state; others cannot exist in the liquid state; and some cannot either in the gaseous or liquid state" give suitable examples and justify the above statement.
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i did not understand ur question it is criical condition.........
jaycomanthramNithin:
haha
shivash it is because
Most people might say that Carbon dioxide cannot exist in the liquid state. Dry ice (the solid form) goes directly to a gas at normal pressures. Given sufficient pressure (in a steel cylinder) the liquid form can exist. Any solid compound which decomposes upon heating will never be found in the liquid state, but sometimes very low pressure and laser excitation can turn the solid into a gas.
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