**Explanation:**

**1. Introduction to Specific Heat:**
Specific heat is defined as the amount of heat energy required to raise the temperature of a substance per unit mass. It is denoted by the symbol "C" and has units of J/(kg·K) or J/(g·°C).

**2. Radian Correction:**
Radian correction is a correction factor applied when measuring the specific heat of a substance using a calorimeter. It takes into account the heat lost or gained by the calorimeter itself during the experiment. The correction factor accounts for any temperature change in the surroundings of the calorimeter and adjusts the measured value accordingly.

**3. Impact on Specific Heat Measurement:**
If radian correction is not considered in specific heat measurement, the measured value of specific heat will be **more than its actual value**. This can be explained by the following points:

- **Heat Loss/Gain:** During the measurement of specific heat, heat is transferred from the substance being tested to the surroundings or vice versa. This heat transfer may cause a change in the temperature of the surroundings and the calorimeter itself.

- **Incomplete Energy Transfer:** If radian correction is not applied, the measured value of specific heat will include the heat lost or gained by the calorimeter. This means that the measured value will be higher than the actual value because it includes the additional heat transfer from the calorimeter.

- **Higher Measured Value:** The radian correction factor accounts for this additional heat transfer and adjusts the measured value to reflect only the heat transferred to or from the substance being tested. Therefore, if radian correction is not considered, the measured value will be higher than the actual value.

**4. Conclusion:**
In conclusion, if radian correction is not considered in specific heat measurement, the measured value of specific heat will be more than its actual value. Radian correction is necessary to account for the heat lost or gained by the calorimeter during the experiment and to obtain an accurate measurement of specific heat.

Specific heat value is changing because correction is there. deltaQ