Which of the following is the application of the highest specific heat capacity of water?

Options

A. Cooling of softdrink bottles in ice
B. Cooling of earth's atmosphere after hail storm
C. Usage of water as coolant
D. Bursting of water pipes during winter in cold countries

Explanation

To solve the question regarding the application of the highest specific heat capacity of water, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Understanding Specific Heat Capacity**:
- Specific heat capacity is defined as the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. Water has a high specific heat capacity, meaning it can absorb a lot of heat without a significant change in temperature.

2. **Analyzing the Options**:
- **Option 1: Cooling of soft drink bottle in ice**:
- Ice absorbs heat from the soft drink bottle, causing the drink to cool down. While this involves heat absorption, it does not specifically highlight the application of water's high specific heat capacity. Therefore, this option is not the correct answer.

- **Option 2: Cooling of earth's atmosphere after hail storm**:
- During a hail storm, tiny ice droplets fall and absorb heat from the surrounding air, which can cool the atmosphere. However, this is not the highest application of water's specific heat capacity, as it primarily involves ice rather than water. Thus, this option is also incorrect.

- **Option 3: Uses of water as coolant**:
- Water is widely used as a coolant in various applications, such as in car radiators. The high specific heat capacity of water allows it to absorb a large amount of heat without a significant rise in temperature, making it an effective coolant. This option directly relates to the application of water's high specific heat capacity, making it the correct answer.

- **Option 4: Bursting of water pipes during winter in cold countries**:
- This phenomenon occurs due to the expansion of water as it approaches freezing point. While it relates to the properties of water, it does not illustrate an application of its high specific heat capacity. Therefore, this option is not correct.

3. **Conclusion**:
- After analyzing all the options, the correct answer is **Option 3: Uses of water as coolant**. This option best exemplifies the application of water's high specific heat capacity.