Question

One kilo calorie is equal to $4.2J$.

• A. True
• B. False

Answer 1

The correct option is B False

1. Calorie is a unit commonly used to measure the amount of heat.
2. It is represented as $cal$.
3. $1cal$ is the amount of heat that can raise the temperature of $1g$of water by $1^{0}C$
4. $1calorie=4.184J$
5. $1Kilocalorie=1000calorie$
6. Therefore, $$\begin{gathered} 1kilocalorie=1000\times 4.184Joules \\ 1kilocalorie=4184Joules \end{gathered}$$

Hence, the given statement is false.