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8.200 J

Q: How many joules are needed to change the temperature of 100 g of water from 20 degrees Celsius to 40 degrees celsius?

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The change is 7 Celsius degrees (NOT degrees Celsius).

12 - (-5) = 17 deg

100

The Fahrenheit scale change of 1 degree is smallest when compared to Celsius change. 1.8 degrees Celsius is 1 degree Fahrenheit

They are the same; the kelvin scale is designed so the difference between degrees is the same as the celsius scale.

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The change is 7 Celsius degrees (NOT degrees Celsius).

20 degrees Celsius is 68 degrees Fahrenheit. 45 degrees Celsius is 113 degrees Fahrenheit. So 25 degrees change Celsius = 25 x 1.8 = 45 degrees Fahrenheit. 1 degree change in Celsius is equivalent to 1.8 degrees change in Fahrenheit. Scroll down to related links and look at "Conversion of Temperature Units".

the difference between -2 and 8 Celsius is 10 degrees Celsius

Celsius degrees are larger.

Please try to use your brain to solve simple questions such as this one. The change in temperature is simply 100 - 35 = 65 degrees Celsius.

12 - (-5) = 17 deg

Since --7 deg = +7 deg, the change is 1 Celsius degree.

convert 68 fahrenheit to celsius. (celsius =(fehrenhit -32)/ 1.8)

No, the "degrees" have the same name but are different sizes. (Celsius degrees are larger intervals than Fahrenheit degrees.) A change of 1 degree Celsius is the same as a change of 1.8 degrees Fahrenheit.

Subtract 273.15

100

A change of 7.2 degrees on the Fahrenheit scale would be a change of 4 degrees on the Celsius scale. The conversion is 1.8 Fahrenheit degrees per Celsius degree (Celsius degrees are larger intervals).Example :[ Temperature in °C = 5/9 (temperature in °F - 32°) ]86° F is equal to 30° C93.2° F is equal to 34° C