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2 years ago

Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.

Chemistry

2 answers:

zhuklara [117]2 years ago

7 0

The best way is add alcohol .

The common way is that decrease the atmospheric pressure .

This will work as per Boyles law ,and boiling point can be decreased.

but it has few restrictions

You can't decrease pressure simply at normal conditions
For decreasing pressure you have to go hill tops .

Hence there is a spare way

Add alcohol

General alcohols like ethanol,butanol can decrease the boiling point of water

slava [35]2 years ago

4 0

It can be done. Normally the boiling point of water is 100°C. It will boil at temperature greater than 100°C more quickly. Water can be boiled at 95°C but for that the atmospheric pressure of the water should be decreased which will decrease the boiling point of water.

<h3>Concept :</h3>

To boil water at 95°C, decrease the atmospheric pressure.

At 105°C, the water will be boiling quickly than normal at 100°C.

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A particular first-order reaction has a rate constant of 1.35 × 102 s-1 at 25.0°C. What is the magnitude of k at 95.0°C if Ea =

never [62]

Answer:

k ≈ 9,56x10³ s⁻¹

Explanation:

It is possible to solve this question using Arrhenius formula:

$ln\frac{k2}{k1} = \frac{-Ea}{R} (\frac{1}{T2} -\frac{1}{T1} )$

Where:

k1: 1,35x10² s⁻¹

T1: 25,0°C + 273,15 = 298,15K

Ea = 55,5 kJ/mol

R = 8,314472x10⁻³ kJ/molK

k2 : ???

T2: 95,0°C+ 273,15K = 368,15K

Solving:

$ln\frac{k2}{k1} = 4,257$

$\frac{k2}{k1} = 70,593$

${k2} = 9,53x10^3 s^{-1}$

I hope it helps!

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3 years ago

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Answer:

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Explanation:

You can multiply 85% and 20 or subtract 85% from 20.

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3 years ago

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3 years ago

Select the pair that consists of a base and its conjugate acid in that order. CO32−/CO22−

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$H_3PO_4\rightarrow H_PO_4{2^-}+2H^+$

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3 years ago

Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.​

Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.