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Question
Heavy snow can block traffic on road. It is difficult to melt the ice. Which of the following melts ice on roads even at temperatures below 0∘C?
Heavy snow can block traffic on road. It is difficult to melt the ice. Which of the following melts ice on roads even at temperatures below 0∘C?
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Solution
The correct option is B Hydrated calcium chloride
Hydrated CaCl2 has the tendency in putting a temporary halt to the freezing process. It remains liquid at 00 C, the temperature at which pure water would freeze.As saltwater mixture is more stable than salt-ice mixture, freezing won't occur until the temperature drops even lower.
Hydrated CaCl2 has the tendency in putting a temporary halt to the freezing process. It remains liquid at 00 C, the temperature at which pure water would freeze.As saltwater mixture is more stable than salt-ice mixture, freezing won't occur until the temperature drops even lower.
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