1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
geniusboy [140]
3 years ago
11

The instruction booklet for your pressure cooker indicates that its highest setting is 12.3 psi . you know that standard atmosph

eric pressure is 14.7 psi, so the booklet must mean 12.3 psi above atmospheric pressure. at what temperature in degrees celsius will your food cook in this pressure cooker set on "high"
Physics
1 answer:
zmey [24]3 years ago
3 0
<span>118 C The Clausius-Clapeyron equation is useful in calculating the boiling point of a liquid at various pressures. It is: Tb = 1/(1/T0 - R ln(P/P0)/Hvap) where Tb = Temperature boiling R = Ideal Gas Constant (8.3144598 J/(K*mol) ) P = Pressure of interest Hvap = Heat of vaporization of the liquid T0, P0 = Temperature and pressure at a known point. The temperatures are absolute temperatures. We know that water boils at 100C at 14.7 psi. Yes, it's ugly to be mixing metric and imperial units like that. But since we're only interested in relative pressure differences, it's safe enough. So P0 = 14.7 P = 14.7 + 12.3 = 27 T0 = 100 + 273.15 = 373.15 And for water, the heat of vaporization per mole is 40660 J/mol Let's substitute the known values and calculate. Tb = 1/(1/T0 - R ln(P/P0)/Hvap) Tb = 1/(1/373.15 K - 8.3144598 J/(K*mol) ln(27/14.7)/40660 J/mol) Tb = 1/(0.002679887 1/K - 8.3144598 1/K ln(1.836734694)/40660) Tb = 1/(0.002679887 1/K - 8.3144598 1/K 0.607989372/40660) Tb = 1/(0.002679887 1/K - 5.055103194 1/K /40660) Tb = 1/(0.002679887 1/K - 0.000124326 1/K) Tb = 1/(0.002555561 1/K) Tb = 391.3034763 K Tb = 391.3034763 K - 273.15 Tb = 118.1534763 C Rounding to 3 significant figures gives 118 C</span>
You might be interested in
What is the acceleration if a 5 kg cart is pushed with 30 N of force?
sp2606 [1]

Answer:

<h2>6 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a  = \frac{30}{5}  \\

We have the final answer as

<h3>6 m/s²</h3>

Hope this helps you

3 0
3 years ago
The Doppler effect is the change in
anzhelika [568]

Yes indeed, that is a true statement.  Truer words are seldom written, and I could not agree with you more.

In case you are asking a question, I can kind of see how this might be a question if there is a blank after "... the change in ..." that is to be filled with one or more new words.

If that is the situation, then the blank can be filled with "frequency or wavelength" .

8 0
3 years ago
Read 2 more answers
What is light intensity? ​
Stels [109]

Answer:

Light intensity refers to the strength or amount of light produced by a specific light source .

8 0
3 years ago
Doppler Effect: A stationary source produces a sound wave at a frequency of 50 Hz. The wave travels at 100 feet per second. A ca
Leno4ka [110]

Answer:

︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎

Explanation:

Hope it helps!

6 0
3 years ago
Running with an initial velocity of +11m/s, a horse has an average acceleration of -1.81m/s 2 . How long does it take for the ho
Ronch [10]

Answer:

2.49 seconds

Explanation:

From the question,

a = (v-u)/t............................ Equation 1

Where a = acceleration, v = final velocity, u = initial velocity, t = time

Make t the subject of the equation

t = (v-u)/a.......................... Equation 2

Given: v = 6.5 m/s, u = 11 m/s, a = -1.81 m/s²

Substitute these values into equation 2

t = (6.5-11)/(-1.81)

t = -4.5/-1.81

t = 2.49 s

6 0
3 years ago
Other questions:
  • Which is a gas at room temperature?
    9·2 answers
  • How was the work of Newlands similar to that of Mendeleev on the periodic table?
    5·1 answer
  • A ball is rolled from rest , find the velocity after 10s while accelerating at 5 m/s 2
    13·1 answer
  • What is power? give the formula
    8·2 answers
  • Technician A says that the old gaskets should be discarded as they are removed from the transmission. Technician B says that the
    5·2 answers
  • An object in the shape of a thin ring has radius a and mass M. A uniform sphere with mass m and radius R is placed with its cent
    6·1 answer
  • Alice builds another model to describe the movement of the particles of a substance after it changes state due to thermal energy
    13·1 answer
  • Determine the heat required to raise the temperature of 375g of olive oil from
    7·1 answer
  • Answer asp. What happens when you place ice in a hot cup of water? will give brainliest
    11·2 answers
  • Science is the common _________ of all mankind<br><br><br>​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!