Chemistry for Engineers Flashcards

1
Q

Boyle’s Law is also known as

A

Mariotte’s Law

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2
Q

the pressure that a gas will exert in a container assuming it were alone

A

Partial pressure

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3
Q

What is the empirical formula of the Human DNA?

A

C39H50O22N15P3

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4
Q

denotes the bonds formed between the atoms of a molecule

A

Empirical Formula

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5
Q

denotes the actual number of each atom in a molecule

A

Molecular Formula

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6
Q

“effective” bulletproof vest

A

Polyethylene Fiber

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7
Q

UHMWPE

A

Ultra-high Molecular Weight Polyethylene

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8
Q

bulletproof vest; Kevlar

A

Polyamide Fiber

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9
Q

bulletproof windows

A

Polycarbonate Fiber

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10
Q

flexiglass; Common Material of Construction for Radiation Protection

A

Polymethcrylate Fiber

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11
Q

3 Fundamental Laws of Stoichiometry

A
  1. Law of Conservation of Mass
  2. Law of Definite Comparison
  3. Law of Multiple Proportions
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12
Q

matter can not be created nor destroyed but only change from one form into another

A

Law of Conservation of Mass

  • Antoine Lavoisier
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13
Q

regardless of its extensive amount, the % composition of a molecule’s components remains constant

A

Law of Definite Comparison

  • Joseph Louis Proust
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14
Q

atoms have the tendency to bond in a appreciable whole number, integers, each being a distinct compound

A

Law of Multiple Proportions

  • John Dalton
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15
Q

To which subatomic particle does each statement refer to:
(a.) Has a positive charge
(b.) Cannot be found inside the nucleus
(c.) Has the smallest mass
(d.) Has a neutral charge

A

Proton, Electron, Electron, Neutron

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16
Q

Who discovered electron?

A

J. J. Thomson (Plum-Pudding Model)

  • Cathode Ray Experiment
17
Q

Who coined the term “electron”

A

George Stoney

18
Q

Who conducted the Oil Drop Experiment?

A

Robert Millikan

19
Q

Who discovered proton?

A

Ernest Rutherford (Rutherford Atomic Model)

20
Q

Experiment conducted by Ernest Rutherford

A

Geiger-Morsden Experiment

21
Q

Who discovered neutron?

A

James Chadwick

22
Q

Which among the following statements regarding Classical Physics and Quantum Theory is TRUE?

I – Robert Bunsen proposed that Energy, like matter, is discontinuous.
II – Quantum Theory places no limitation on the amount of energy that a system may possess.
III – The energy of a quantum of electromagnetic radiation is proportional to the frequency of the radiation.

A

III only

23
Q

Who proposed that energy, like matter, is discontinuous?

A

Max Planck

24
Q

The first spectroscope of energy

A

Robert Bunsen and Gustav Kirchoff

25
Q

Caesium came from the Latin term

A

“Caesius” - sky blue

26
Q

Rubidium came form the Latin term

A

“Rubidius” - deep red

27
Q

Helium came from the Greek term

A

“Helios” - the sun

28
Q

It places no limitation on the amount of energy that a system may possess

A

Classical Physics

29
Q

Energy that a system may possess must be finite and discrete

A

Quantum Theory

30
Q

Who proposed the photoelectric effect?

A

Heinrich Hertz

31
Q

An energy that binds the electron on the surface of a metal

A

Work Function

32
Q

It states than light can behave as either a wave or a particle (photon)

  • Albert Einstein
A

Wave - Particle Duaity

33
Q

The minimum frequency that a ight must possess in order to initiate the photoelectric effect

A

Threshold Frequency (f0)

34
Q

The bonds between the atom of a molecule

A

Intramolecular Forces

35
Q

The bonds between the molecular, identical or not

A

Intermolecular Forces

36
Q

The weakest IF. Also known as dispersion forces, London forces, or instantaneous dipole - induced dipole forces. Present in every molecule.

A

Van der Waals Forces

37
Q

The tendency of a molecule to undergo electron redistribution due to the pressure of an external field

A

Polirazibility

38
Q

Stronger that Van der Waals forces. Can only occur in a polar molecule. The alignment of the partial positive pole of one molecule to the partial negative pole of another molecule.

A

Dipole - Dipole Forces