Question

in 1925 how was a calorie scientifically defined?
based off the nutritional value on the back of a food package
in units of energy
in terms of joules
measured in degrees
question 2
1 pts
a calorie is defined as the amount of heat needed to raise the temperature of 1 kilogram of water from 0 to 1 degree celsius
0 to 2 degrees fahrenheit
0 to 2 degrees celsius
0 to 1 degree fahrenheit
0 to 1 degree celsius

Explanation:

A calorie is a unit of energy. It is defined based on the heat energy required to change the temperature of water. In 1925, the scientific definition related to energy units. For the second question, the standard definition of a calorie is the heat needed to raise 1 kilogram of water from 0 to 1 degree Celsius.

Answer:

First question: In units of energy.
Second question: 0 to 1 degree Celsius.