The favourable conditions for melting of ice is

Options

A. Low pressure
B. High pressure
C. low temperature
D. Absence of catalyst

Answer

To determine the favorable conditions for the melting of ice, we need to analyze the process of melting and the factors that influence it.

### Step-by-Step Solution:

1. **Understanding the Process**:
- Melting of ice is an endothermic process, meaning it requires the absorption of heat to convert solid ice into liquid water.

2. **Temperature Consideration**:
- For ice to melt, it must absorb heat, which typically occurs at higher temperatures. Therefore, low temperature is not favorable for melting ice.

3. **Pressure Consideration**:
- According to the ideal gas equation (PV = nRT), pressure (P) is directly proportional to temperature (T) when the volume (V) and the number of moles (n) are constant.
- To facilitate melting, we require a higher temperature, which implies that higher pressure can also support this process.

4. **Evaluating Options**:
- **Low Pressure**: This would not favor melting since it does not support the necessary temperature increase.
- **High Pressure**: This is favorable as it allows for higher temperatures, thus promoting the melting of ice.
- **Low Temperature**: This is not favorable as discussed earlier.
- **Absence of Catalyst**: Catalysts do not play a role in the melting of ice, so this option is irrelevant.

5. **Conclusion**:
- The most favorable condition for the melting of ice is **high pressure**.

### Final Answer:
The favorable condition for the melting of ice is **high pressure**.

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