Question

Define the term calorie. How is it related to joule?

• A. The amount of energy required to raise the temperature of 1 gram of water by 1 degree celsius, 1 cal = 4.18 J
• B. The amount of energy required to raise the temperature of 1 gram of water by 1 kelvin, 4.18 Cal = 1 J
• C. The amount of energy required to raise the temperature of 1 gram of water by 1 Fahrenheit, 4.18 Cal = 1 J
• D. The amount of energy required to raise the temperature of 1 gram of ether by 1 degree celsius, 1 cal = 4.18 J

Answer 1

The correct option is A

The amount of energy required to raise the temperature of 1 gram of water by 1 degree celsius, 1 cal = 4.18 J

The explanation for the correct option

Option A

1. The amount of energy required to raise the temperature of 1 gram of water by 1 degree celsius is called one calorie.
2. $1cal=4.18J.$
3. Therefore, the correct option is (A).