Which of the following is not equal to 435 dm?
1 answer:
Answer:
Option C, 4350 cm
Explanation:
One deci meter is equal to ten centi meter,
Given value of length deci meter
Deci meter is a unit higher than centi meter and hence in order to convert a higher order unit to a small order unit, it must be multiplied by ten or the equivalent.
Thus, measured values in centi meters is equal to
Value is deci-meter
4350 centi meters.
Option C is correct
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Answer: 26.5 mm Hg
Explanation:
The vapor pressure is determined by Clausius Clapeyron equation:
where,
= initial pressure at
= ?
= final pressure at
= 100 mm Hg
= enthalpy of vaporisation = 28.0 kJ/mol =28000 J/mol
R = gas constant = 8.314 J/mole.K
= initial temperature =
= final temperature =
Now put all the given values in this formula, we get
Thus the vapor pressure of in mmHg at 26.5 ∘C is 26.5