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
spayn [35]
3 years ago
10

The Doppler effect related change in wave frequency to what?

Chemistry
1 answer:
Irina18 [472]3 years ago
8 0

Answer:

Relative motion of source and observer.

Explanation:

Doppler Effect : It is the change in the observed frequency of the wave due to<em><u> relative motion of the source and object </u></em>.

You might be interested in
Given the equation C3H8(g) + O2(g) = CO2(g) + H2O(g) and that the enthalpies of formation for H2O(g) = -241.8 kJ/mol, CO2(g) = -
kari74 [83]

Answer: 72.4 kJ/mol

Explanation:

The balanced chemical reaction is,

C_3H_8(g)+5O_2(g)\rightarrow 3CO_2(g)+4H_2O(l)  \Delta H=-2220.1kJ/mol

The expression for enthalpy change is,

\Delta H=\sum [n\times \Delta H_f(product)]-\sum [n\times \Delta H_f(reactant)]

\Delta H=[(n_{CO_2}\times \Delta H_{CO_2})+(n_{H_2O}\times \Delta H_{H_2O})]-[(n_{O_2}\times \Delta H_{O_2})+(n_{C_3H_8}\times \Delta H_{C_3H_8})]

where,

n = number of moles

\Delta H_{O_2}=0 (as heat of formation of substances in their standard state is zero

Now put all the given values in this expression, we get

-2220.1=[(3\times -393.5)+(4\times -241.8)]-[(5\times 0)+(1\times \Delta H_{C_3H_8})]

\Delta H_{C_3H_8}=72.4kJ/mol

Therefore, the heat of formation of propane is 72.4 kJ/mol

7 0
3 years ago
A structure containing at least 2 different types of tissue that work together for a common purpose is
elena-14-01-66 [18.8K]
An organ.....................................................................................................

7 0
3 years ago
Oxygen is earth's most abundant element by volume in earth's?
agasfer [191]
Oxygen is Earth's most abundant element by volume in Earth's Orbit
3 0
3 years ago
Help I need an answer today
Ivahew [28]
Here you are! I hope it helps, and also for the ones I put a red ‘x’ it depends on how you round it.

5 0
3 years ago
Read 2 more answers
Calculate how many moles of nh3 form when each quantity of reactant completely reacts?
anygoal [31]

3.6 moles NH_{3} required when each quantity of reactant completely reacts.

The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A reaction's product yield can be predicted using mole ratios, as can the amount of reactant required to produce a specific amount of result.

The balanced chemical equation is :

3N_{2} H_{4}(l) → 4NH_{3}(g) + N_{2}(g)

Given is = 2.6 mol N_{2} H_{4}

As we see, 3 moles of N_{2} H_{4} reacts with  4 moles of NH_{3}.

Therefore,

n( NH_{3}) = n(  N_{2} H_{4} ) × \frac{4}{3}

n( NH_{3}) = 2.6mol^{*} \frac{4mol}{3mol}

n( NH_{3}) = 3.6 moles.

Therefores, 3.6 moles NH_{3} required when each quantity of reactant completely reacts.

Learn more about moles here;

brainly.com/question/20486415

#SPJ4

6 0
2 years ago
Other questions:
  • All of the following are classified as acids except
    12·1 answer
  • What kind of compound has two atoms in it
    11·1 answer
  • The atomic and mass numbers for four different atoms are given below. Which two are isotopes of the same element?
    6·1 answer
  • What fraction of a sample of 6832ge, whose half-life is about 9 months, will remain after 2.9 yr ?
    7·1 answer
  • PLEASE HELP THANKS
    15·2 answers
  • Why did the outside of the bag get wet? From ice melting in the bag
    9·1 answer
  • A solution prepared by mixing 10 ml of 1 m hcl and 10 ml of 1.2 m naoh has a ph of
    7·1 answer
  • In your opinion, why do you think the atomic models are not final?
    15·1 answer
  • A student makes two mixtures, both made of the same substances. What must be true of the two mixtures? A Both mixtures have the
    11·1 answer
  • Clouds form when water vapor out of the air
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!