How much heat energy should be added to the gaseous mixture consisting of 1 g of hydrogen and 1g of helium to raise it s temperature from `0^(@)C` to `100^(@)C`
(a) at constant volume,
b. at constant pressure `(R = 2 cal//mol K)`?

Explanation

To solve the problem of how much heat energy should be added to a gaseous mixture consisting of 1 g of hydrogen and 1 g of helium to raise its temperature from 0°C to 100°C at constant volume and at constant pressure, we can follow these steps:

### Step 1: Determine the number of moles of hydrogen and helium
- **Hydrogen (H₂)** has a molecular weight of 2 g/mol.
\[ n_{H_2} = \frac{1 \text{ g}}{2 \text{ g/mol}} = 0.5 \text{ mol} \]

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