Your friend measures the temperature of her coffee to be 70° Celsius. Your friend also notices that the temperature outside is 35° Celsius. Why is it incorrect to say that the coffee is twice as warm as the temperature outside?

A. Temperature in Celsius is an interval scale; zero degrees Celsius does not represent a complete absence of heat.

B. 70 degrees Celsius is not twice as warm as 35 degrees Celsius because temperature in Celsius is an interval scale (and not a ratio scale).

C. Because zero degrees Celsius does not represent a complete absence of heat (i.e., Celsius uses an arbitrary zero), it is incorrect to say that 70 degrees Celsius is twice as warm as 35 degrees Celsius.

The claim that 70 degrees Celsius is twice as warm as 35 degrees Celsius is incorrect because the Celsius scale is an interval scale, not a ratio scale.

Therefore, 0 degrees doesn't represent an absence of heat.

Explanation:

The statement that 70 degrees Celsius is twice as warm as 35 degrees Celsius is incorrect due to the nature of the temperature scale used.

Celsius is considered an interval scale, not a ratio scale, meaning zero doesn't represent a complete absence of heat but rather it's the temperature of the freezing point of water.

Saying one temperature is 'twice as hot' as another in the Celsius scale doesn't make sense because of arbitrary zero.

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