`0.32 g` of oxygen is kept in a rigid container and is heated. Find the amount of heat needed to raise the temperature from `25^0 C to 35^0 C`. The molar heat capacity of oxygen at constant volume is `20 J K^(-1) mol^(-1)`.

Explanation

To find the amount of heat needed to raise the temperature of 0.32 g of oxygen from 25°C to 35°C, we can follow these steps:

### Step 1: Identify the given values
- Mass of oxygen (m) = 0.32 g
- Initial temperature (T1) = 25°C
- Final temperature (T2) = 35°C
- Molar heat capacity at constant volume (Cv) = 20 J K^(-1) mol^(-1)

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