Misc Science Flashcards

1
Q

What is the boiling point of water?

A

Short Answer: The boiling point of water is 100°C (actually 99.98) or 212° F at 1 atmosphere of pressure (sea level).

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2
Q

How do elevation and impurities effect the boiling point of water?

A

Water boils at a lower temperature as you gain altitude (e.g., on a mountain) and boils at a higher temperature if you increase atmospheric pressure (lived below sea level).

The boiling point of water also depends on the purity of the water. Water which contains impurities (such as salted water) boils at a higher temperature than pure water. This phenomenon is called boiling point elevation, which is one of the colligative properties of matter.

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3
Q

1°C = x ° F

A

1°C = 1.8 ° F

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4
Q

At what temperature does water freeze?

A

0°C, 32 ° F

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5
Q

What is the formula to find the temperature in F if you know the temperature in C?

A

tF = 1.8 tC + 32 = 9/5 tC + 32

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6
Q

What is the formula to find the temperature in C if you know the temperature in F?

A

tC = 0.56 (tF - 32) = 5/9 (tF - 32)

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7
Q

If it’s -20 °C what is the temperature in F?

A

-4 ° F

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8
Q

If it’s 15 °C, what is the temperature in F?

A

59 °F

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9
Q

If it’s 40 °C, what is the temperature in F?

A

104 °F

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10
Q

If it’s 5 °C, what is the temperature in F?

A

41 °F

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11
Q

If it’s 86 °F, what is the temperature in C?

A

30°C

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12
Q

If it’s 50 °F, what is the temperature in C?

A

10 °C

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13
Q

If it’s 77 °F, what is the temperature in C?

A

25 °C

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14
Q

What is another name for the Kelvin scale?

A

Absolute Temperature Scale

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15
Q

What is the coldest possible temperature?

A

0 Kelvin (0 K) = -273°C

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16
Q

1 unit K = x unit °C

A

1 unit °C

17
Q

What is the formula to calculate Kelvin from a C temperature?

A

tK = tC + 273.16