Question

Define 1 cal for class 9​

Answer 1

Answer:

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Explanation:

The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to approximately 4.2 joules.

Answer 2

Answer:

are u akshat from class 9 A ???

Explanation:

I am learning heat and energy chapter in class 9

yesterday sir started\

let me tell u;

1 cal = 4.2 joule or 4 .186 joule