Calculate the heat energy required to raise the temperature of 2 kg of water from `10^@`C to ` 50^@`C. Specific heat capacity of water is 4200 J `kg^(-1) K^(-1)`.

Explanation

To calculate the heat energy required to raise the temperature of 2 kg of water from 10°C to 50°C, we can use the formula:

\[ Q = m \cdot s \cdot \Delta T \]

Where:
- \( Q \) = heat energy (in joules)
- \( m \) = mass of the substance (in kg)
- \( s \) = specific heat capacity (in J/kg·K)
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