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Chemistry

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Charley Bins

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Cards in this guide (16)
What is thermodynamics

the study of the movement of energy and heat.

or

Thermodynamics is the branch of physics concerned with the conversion of different energy forms.

•DeltaG (rxn) = DeltaG (pdts) - DeltaDG (rcts) •DeltaG°(rxn) = -R T ln K •

What is the mass defect

If you add the exact mass of the protons, neutrons, and electrons in an atom you do not get the exact atomic mass of the isotope. The diference is called the mass defect. The difference between the mass of the atomic nucleus and the sum of the masses of the particles within the nucleus is known as the mass defect.

What is entropy and which phase of matter has the the highest entropy

Plasma

How to Put these photons in order of increasing energy

A photon with energy 3.0 x 10-19 J

A photon with wavelength 525 nm

A photon with frequency 7.6 x 1014 Hz

A photon with frequency 2 x 1015 Hz

Is nuclear chain reaction is called fusion

No

The nuclear chain reaction is called nuclear fission not fusion,

How much energy does it take to melt a 16.87 g ice cube

636 J

Which quantum number deals with shape

The second quantum number, or "l" which describes the subshell (s, p, d, f, etc).

What is important in order for a radioisotope to provide accurate dating results

The half-life should be similar to the age of the object.

Which equation shows how frequency is related to velocity and wavelength

F=v/&

What does binding energy measure

The energy used to hold the nucleus together

What best describes a radioisotope

its nucleus is unstable

What is the angular momentum quantum number and magnetic quantum number for a 3p electron

For 3p the quantum numbers are:principal quantum number (n)=3

Azimuthal quantum number(l)=1

Magnetic quantum number(m)=0, +-1

Spin quantum number(s)=+1/2, -1/2


What is the third quantum number of a 2s2 electron in phosphorus 1s22s22p63s23p3

mi=0

How much energy is released is a sample loses 0.05 kg mass through radioactive decay

4.5 × 1015 J

What does a wave do

It moves energy through space.

What is neutron moderation used to counteract against

the minimal chance that newly formed neutrons of a fission reaction are absorbed by more atoms. (apex)

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