One …………. is defined as the amount of heat required to raise the temperature of 1 gram of water by `1^(@)C`.

Explanation

To answer the question, we need to define the term that describes the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius.

### Step-by-Step Solution:

1. **Understanding the Concept**: We need to identify the specific term used in physics to describe the heat required to raise the temperature of a specific mass of water.

2. **Identifying the Mass and Temperature Change**: The problem specifies that we are dealing with 1 gram of water and a temperature change of 1 degree Celsius.

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