Question

evaporators are typically under a vacuum in order to reduce the boiling point of water . without vacuum water boils at a temperature of 100 degre celcius. but with vacuum it boils at 83.5 degre celcuis. what is the percent change in the boiling temperature with addition of vacuum. show each step

Answer 1

Answer:

There is a reduction of 16.5% in the boiling temperature due to addition of vacuum.

Step-by-step explanation:

Water boils at 100 degree Celsius without vacuum.

With the addition of vacuum, the boiling temperature reduces to 83.5 degree Celsius.

The total reduction in boiling temperature is $100 - 83.5 = 16.5$ degree Celsius.

At first, the boiling temperature was 100 degree Celsius, which reduces by 16.5 degree Celsius.

The change in percentage is $\frac{16.5}{100} \times100 = 16.5$.