Temperature

BUCUN BENGKEL : Temperature measures the heat intensity or heat level of a substance. In indicates the degree of warmth, or how hot or cold the substance is.

The U.S. conventional unit of temperature is degree Fahrenheit (°F). The SI unit of temperature is the Kelvin (K). The temperature intervals (space between degrees) on the Kelvin scale are the same as Celsius (°C). Celsius is sometimes called the Centigrade scale. Temperature is measured with a thermometer.

Two temperature determine the calibration of thermometer :

-  The temperature of melting ice 32°F (0°C).

-  The temperature of boiling water 212°F (100°C).

The freezing point and boiling point are based on freezing and boiling temperatures of water at standard atmospheric pressure.

Degrees Celsius to Degrees Fahrenheit :

Formula :

Temperature in °F = ((180/100) x Temperature °C) + 32

Example :

Convert 75°C to °F.

Solution :

°F = ((9/5) x 75 °C) + 32

°F = (1,8 x 75 °C) + 32

°F = 135 + 32

°F = 167 °F

Degrees Fahrenheit to Degrees Celsius :

Formula :

Temperature in °C = 100/180 x ( Temperature °F – 32)

Example :

Convert 212°F to °C.

Solution :

°C = 5/9 x (212 °F - 32)

°C = 5/9 x (212 °F - 32)

°C = 0,56 x 180

°C = 100 °C

Degrees Celsius to Kelvin :

Formula :

K = °C + 273

Example :

Convert -10°C to K.

Solution :

K = -10 + 273

K = 263 K

Kelvin to Degrees Celsius :

Formula :

Temperature in °C = K - 273

Example :

Convert 400 K to °C.

Solution :

°C = 400 - 273

°C = 127 °C

Source : Panasonic