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sladkih [1.3K]
3 years ago
5

Select the correct answer.

Chemistry
1 answer:
cupoosta [38]3 years ago
3 0

Answer:

A.

as the sum of the energy of the products and the energy of the reactants.

Explanation:

Because the sun is on top of the energy.

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Despite the destruction from Hurricane Katrina in September 2005, the lowest pressure for a hurricane in the Atlantic Ocean was
ollegr [7]

Complete Question

Despite the destruction from Hurricane Katrina in Sept 2005,the lowest pressure for a hurricane in the Atlantic Ocean was measured several weeks after Katrina. Hurricane Wilma registered at atmospheric pressure of 88.2 kPa on Oct 19, 2005,about 2 kPa lower than Hurricane Katrinia. What was the difference between the two hurricanes in:

millimeters of Hg? ___ mm Hg

atmospheres? ___ atm

millibars? ___ mb

Answer:

The difference in pressure in mm of  Hg is  Pg =  15.05 \ mm\ Hg

The difference in pressure in atm is   P_{atm} = 0.0198 \ atm

The difference in pressure in millibar is   P_{bar} = 20 \ mbar

Explanation:

From the question we are told that

      The pressure of Hurricane Wilma is  P = 88 kPa

      The difference is pressure is  \Delta P =2\  k Pa

Generally

            1\ atm = 1.01 *10^5 \ Pa

            1 \ atm = 760\ mmHg

The pressure difference in mm Hg is mathematically  evaluated as

             Pg =  \Delta  P * \frac{1000 Pa}{1kPa}  * \frac{1\ atm}{1.01 *10^5} * \frac{760 mm Hg}{1 \ atm}

Substituting the value

            Pg =  2 kPa * \frac{1000 Pa}{1kPa}  * \frac{1\ atm}{1.01 *10^5} * \frac{760 mm Hg}{1 \ atm}

            Pg =  15.05 \ mm\ Hg

  The pressure difference  in atm is  

                                      P_{atm } = 2kPa * \frac{1000}{1\ kPa} *\frac{1 \ atm}{1.01 *10^5 Pa}

                                               = 0.0198 \ atm

  The pressure in millibars is  

                                            = 2kPa * \frac{1000Pa}{1 kPa} * \frac{1\ bar }{1*10^5 Pa} * \frac{1000 \ milli bar}{1 bar}

                                            = 20 \ m bar

7 0
4 years ago
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